“Keeping Up With The Kardashians” star Kourtney Kardashian, who gave birth to baby Mason Disick a couple months ago, and her baby daddy Scott Disick have been having a rough time adapting to a new baby, especially because of Scott’s erratic behavior.

According to InTouch, Scott is no longer the attentive boyfriend he used to be while Kourtney was pregnant and he was allegedly caught cheating. The paternity of Kourtney’s baby was questioned by one of her flings, a guy named Michael Girgenti (more details and photos here).

The truth is Kourtney loves Scott. But she has also confessed to feel trapped in a dramatic relationship in which Scott isn’t either interested or determined to be a good caring, loving father. Kourtney is basically taking care of baby Mason by herself (first pictures here).

“Kourtney resents Scott for his behavior,” says a friend. “They fight about almost everything when they’re together.”

“From what I’ve seen, Scott doesn’t really hold the baby,” a frequent observer reveals. “When Kourtney has needed help, she has had to ask, and Scott appeared to give her crap about it. He acts like it is a huge hassle if he has to do anything like put down his phone to hold the baby.”

Apparently Scott is also a big jerk since he allegedly teases her about being “fat” because Kourtney hasn’t lost the baby weight yet (photos here). The new daddy told pals that he does not feels attracted to Kourtney anymore.

“To him, it’s joking, but to her it’s taunting,” says one of his pals. “She is really trying to lose it, but it isn’t coming off as fast as she’d like.”

Kourtney and Scott were seen happily together in Vegas over the weekend (photo above). Kourtney debunked the break up and betrayal rumors, saying, “Scott is my partner and we do everything together.” The reality star also claimed she was anxious about leaving her son with her family but that she has been texting and picture messaging all the time to make sure he is OK.

[image: InTouch, Chris Connor/wenn.com]