You have to do what you think is right. Follow intuition. If you strongly feel you should go to court then that may be the best way to go. Especially if you think you might regret not doing it at a later time.

It sounds like you will get drama or stress regardless, so do what you feel you need to do, but continue to be a good guy for YOU. Not for her.

There is no arriving, ever. It is all a continual becoming.