your decision is fine. that's it. there is nothing much to say , you can be a good help to your ex. but nothing more than that. i just wanted to share an experience, my neighbour, he is close friend of my H. whole weekend there was fight in his house, i live in apartment, so noises were too loud and really emotionally upsetting. he goes to gym with my H , he broke down to my H tonight, saying it is same fighting for last 15 years. he is tired of drama and fighting. he does not care, if spouse takes all property and he has just enough to live and eat. he just want to live his 40 s and above in peace. there is time limit after which , even being alone but without any fighting or expectation to satisfy anyone is peaceful. if you feel that way, please proceed.