Personally, I am not a huge fan of playing abuse. I'd rather have the father just be busy and have other priorities. Like his a wealthy business man that accidentally got Tris pregnant and instead of just abounding her, he offered to take care of her as long as she didn't interfere with his dreams. His never really been interested in family or any of his kids, its just something he has to do. Tris might not love having her husband be some big exec that chooses work over family, but she is more than happy to be left alone to raise her children as a single mother with a huge house and plenty of money to give her kids the world.