Kourtney Kardashian "distanced herself from her sisters" during romance with Younes Bendjima.
The 39-year-old reality star split from the 25-year-old model in early August after almost two years of dating, and although they were recently seen grabbing sushi together and fuelling reconciliation rumours, it has been claimed her famous family - including sisters Kim Kardashian West and Khloe Kardashian - would be less than thrilled if they got back together.
A source told People magazine: "Kourtney was always so private and closed off when it came to Younes, and that really distanced herself from her sisters. Things are fine with them now and I'm sure they'll get even more back to normal now that it seems he's out of the picture for good.
"This could be a really positive thing for her relationship with her family."
The news comes after the 'Keeping Up with the Kardashians' star - who has Mason, eight, Penelope, six, and Reign, three, with her former partner Scott Disick - and Younes were reported to have reconciled after being spotted grabbing food together earlier this week.
A source said at the time: "Kourtney and Younes are spending time together again. Things are not yet back to what they were before - it's not an official relationship.
"Kourtney always liked him though and it was hard for her to stay away after he reached out."
Weeks prior to their meeting, a source had claimed Kourtney had completely cut ties with Younes following their break up.
An insider said: "Kourtney is doing great. She isn't seeing Younes. She is happy being single for now.
"After all the drama with Scott over the years, she wasn't going put up with any drama from Younes. She cut him off. She is focused on her kids and herself."