Real Housewives Of New York City: Tinsley Mortimer and mother Dale Mercer cry ...

Tinsley Mortimer cried along with her mother Dale Mercer as the former 'It girl' regained her 'spark' on Thursday's episode of The Real Housewives Of New York City.

The 44-year-old reality star walked in a show by designer Garo Sparo, a former Project Runway competitor who specialized in glittery over-the-top frocks.

The sight of Tinsley in a flouncy dress and tiara sent her mother Dale into tears.

Getting emotional: Tinsley Mortimer cried backstage at New York Fashion Week on Thursday's episode of The Real Housewives Of New York City

Getting emotional: Tinsley Mortimer cried backstage at New York Week on Thursday's episode of The Real Housewives Of New York City

'You look like yourself again,' she cried backstage, remembering how her onetime 'It girl' daughter walked in shows a decade ago.

'Thank you, mommy,' Tinsley said.

The sight of Dale crying made Tinsley tear up and she begged her mother to stop.

'Don't make me cry right now,' Tinsley pleaded.

Tears flowing: Dale Mercer cried as Tinsley looked like her old self

Tears flowing: Dale Mercer cried as Tinsley looked like her old self

Tiara on: Tinsley was in her element with a tiara on

Tiara on: Tinsley was in her element with a tiara on

'I'm gonna be quiet, but you look like yourself again. That's what made me cry,' Dale said.

'Stop! Mommy, please. I can't cry right now. I'm gonna mess up my makeup,' Tinsley said.

Dale asked what was wrong with them and Tinsley burst into laughter followed by her mother.

Tearing up: The sight of Dale crying made Tinsley tear up and she begged her mother to stop

Proud mom: Dale was proud of Tinsley for regaining her form

Tearing up: The sight of Dale crying made Tinsley tear up and she begged her mother to stop

It girl: A throwback photo showed Tinsley on the runway in 2011

It girl: A throwback photo showed Tinsley on the runway in 2011

Most of Tinsley's RHONY castmates were thrilled to see she had her 'spark' back, though Dorinda Medley was less impressed with the venue.

'I know [Tinsley] loves these sort of Disney-themed shows,' she said. 'Maybe she'll find her yellow brick road. She'll have her in Cinderella's castle.'

Dorinda, 55, gave viewers some insight into why she finally broke up with longtime partner John Mahdessian during the season 12 episode.

Huge smile: Tinsley beamed while on the runway

Huge smile: Tinsley beamed while on the runway

While getting her makeup done before an event, Dorinda said that John 'never misses the opportunity to make a bad decision,' adding 'he just doesn't think sometimes.'

'He wanted to go to this event that we're invited to,' she told her makeup artist, Luke. 'It was just too much, too many people. I didn't want to go. It's like he's sneaking out to do it.'

'We're in a relationship for seven-and-a-half years,' she elaborated. 'The answer is, of course, 'Well, I don't want to go, either,' right?'

Relationship status: Dorinda Medley gave viewers some insight into why she finally broke up with longtime partner John Mahdessian during the season 12 episode

Relationship status: Dorinda Medley gave viewers some insight into why she finally broke up with longtime partner John Mahdessian during the season 12 episode

'It just feels a bit disrespectful,' Luke agreed, as Dorinda said she wasn't jealous, or worried about John cheating on her, but 'the lack of transparency' bothered her.

'That's why sometimes I think the relationship gets stunted,' she reflected. 'It's like, 'Fine, go off and do it on your own then.' It's like, I haven't returned phone calls for two days.'

To the cameras, Dorinda added, 'That doesn't make me feel good. That doesn't give me the sense of well-being and love. What's out there that you're missing? Because clearly if you're not home with me, you're not happy with me.'

Camera confessional: To the cameras, Dorinda added, 'That doesn't make me feel good. That doesn't give me the sense of well-being and love. What's out there that you're missing? Because clearly if you're not home with me, you're not happy with me'

Camera confessional: To the cameras, Dorinda added, 'That doesn't make me feel good. That doesn't give me the sense of well-being and love. What's out there that you're missing? Because clearly if you're not home with me, you're not happy with me'

Dorinda and John have been on 'a break' since September 2019.

Despite her romantic troubles, Dorinda showed up for pal Sonja Morgan, 56, when she launched her collection at New York Week.

Sonja was debuting a ready-to-wear apparel line under the brand name Sonja by Sonja Morgan.

New line: Sonja Morgan was debuting a ready-to-wear apparel line under the brand name Sonja by Sonja Morgan

New line: Sonja Morgan was debuting a ready-to-wear apparel line under the brand name Sonja by Sonja Morgan

The RHONY cast was excited to attend her show, and she'd sent them all outfits to wear.

Ramona Singer, 63, opined that anyone who didn't go to a show in New York was 'almost like a leper,' saying that she forced herself to go so she didn't get 'ostracized.'

Sonja was excited to begin a new chapter for her brand, as her collection was wholly separate from the line she'd launched back in 2014.

Fashion week: Ramona Singer, 63, opined that anyone who didn't go to a fashion show in New York was 'almost like a leper,' saying that she forced herself to go so she didn't get 'ostracized'

week: Ramona Singer, 63, opined that anyone who didn't go to a show in New York was 'almost like a leper,' saying that she forced herself to go so she didn't get 'ostracized'

She described the audience for her new brand as being between the ages of 25 and 45, joking, 'I'm 55, pushing 70.'

Sonja was especially excited about the accessible price point of her collection, in which everything was under $250, but worried about her scatterbrained team.

With just a week before the show, they hadn't cast models and invited just 75 people.

Affordable collection: Sonja was especially excited about the accessible price point of her collection, in which everything was under $250

Affordable collection: Sonja was especially excited about the accessible price point of her collection, in which everything was under $250

'This is a big hurdle for me, and I don't want to mess it up,' Sonja admitted, adding that it was especially 'nerve-wracking' because her designer pals and RHONY castmates were coming.

The next show the women attended was for designer Pamella Roland, and they threw their weight around backstage and on the red carpet.

Luann de Lesseps, 54, asked the models' hairdresser to tame her coif, while Ramona butted in front of a woman posing with Pamella and asked an event photographer to take her own pics.

Hair done: Luann de Lesseps, 54, asked the models' hairdresser to tame her coif

Hair done: Luann de Lesseps, 54, asked the models' hairdresser to tame her coif

Ramona wasn't happy with Tinsley, claiming she'd 'trashed' her room after Ramona's recent house party in the Hamptons, and left spaghetti stains on her duvet comforter.

She was equally incensed that Sonja texted throughout Pamella's show, telling her at brunch afterward, 'If you can't multi-task, there's something wrong with your business.'

'Multi-task?' Sonja asked. 'This is a huge show.'

Front row: Ramona was annoyed that Sonja was working during the fashion show

Front row: Ramona was annoyed that Sonja was working during the show

'No. It's not a huge show,' Ramona replied, as Sonja fretted about models, sponsors, and costs.

When Leah McSweeney, 37, showed up, Ramona called her 'rude' for skipping Pamella's show.

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