Khloé KardashianandTristan Thompsonare still trying to find their new normal following the NBA player’s cheating scandal.

Although Kardashian decided to stay with Thompson in the wake of hisalleged infidelitythroughout her pregnancy, a source tells PEOPLE the couple’s relationship has “changed.”

“She has good days and bad days with Tristan,” says the source. “They had a very calm relationship beforethose videos and pictureswere released. Now their relationship has changed.”

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While Kardashian is still learning to trust Thompson again, the source says she wants to rebuild their relationship.

“Of course it’s hard for Khloé to trust Tristan when he goesout of town for games,” says the source. “She knows her family is right when they warned her to not trust him. But she still wants to keep trying to have a great relationship with Tristan again.”

But in the meantime, theKeeping Up with the Kardashiansstar is keeping Thompson “on a tight leash,” according to the source.

“She thinks it’s up to him to prove himself that he can be a great partner and dad,” says the source. “She’s definitely more needy and in his face now. This has been causing some conflicts.”

A second source tells PEOPLE Kardashian is “not thrilled with Tristan and what he did, but her new little family is more important.”

“Tristan has been so sweet with True, and that makes Khloé so happy,” says the source.

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Earlier this month, PEOPLE confirmed that the basketball player was officiallyliving back at homewith Kardashian and their newborn.

In recent weeks, the couple has also started stepping out together again: On May 4, they werespotted out for lunchin Cleveland. The following night, Kardashiancheered on the NBA starat the Cavaliers’ playoff game against the Toronto Raptors.

And above all, Kardashian is putting her focus on motherhood.

“Khloé seems great. She loves being a mom and can’t stop talking about True,” says the first source, who adds that the reality star misses her family. “She talks to her sisters several times a day.”

source: people.com