I have a friend who is going thru divorce with her

hu*****and, he was considered a very good father as well. and he told her that he does not care about money, he only care about his son. He wants more custody rights. After the custody agreement was done, he then asked for more money, and even though the house was apraised for $260k, he didn't believe that was the value, he said it should be $290k. That was the asking price of another house in the community. She wants to keep the house, so that her son won't feel too big of a shock, so she agreed to $285k. While she has to refinance in order to get money to him, and asked for sharing of refi cost, he refused. So during the time of waiting, that for sale house was sold for $262k. So she tried to ask him to reduce the price, and he was furious, and venting out to their son. She was freaked out, and hope this would end soon, so she agreed to what he asked for.
Now my friend is worrying about his changes, and worrying about her son's staying with him.

Telling you this story is just to prove to you---people change over time. You need and should protect you and your kids as much as you can! Get all your rights, over the time of exersizing those rights, you can relax a little as your goodwill. You can't get back for what you lost.