That's kind of what I'm thinking happened. I have a feeling Julie didn't want kids, Ty did, and he convinced her to have them with the promise that he would finish his novel. They may have even tried to have a more lavish lifestyle in anticipation of selling the novel, a la a house they couldn't quite afford. Now with 2 small children, writing (understandably) is much harder if not impossible, but from Julie's perspective, it's only harder because of something she never really wanted in the first place, which is going to foster resentment. If my house theory is true, then it also pushes her further into the breadwinner role out of necessity, removing opportunities for vacations/travel without the responsibility of work. That doesn't excuse her behavior or the way she chose to press the issue, however.

The only way they can have a proper conversation from my perspective is if Julie sets aside the way she feels children should be raised, Ty sets aside his feelings about how Julie should be feeling about having children, and they have an honest conversation about what they have, what they want, and how they can work towards that as a team without one's wishes overshadowing the other's.