My Mum and stepdad are getting divorced. It is a nasty separation, he was found to have been lying and cheating for a long time. He specifically lied to me about a trip he had been on a few months before he was found out. He has had contact with my kids but less regularly for about 9 months as I didn't want him to just disappear from their lives however now I am thinking about going NC with him. I cant trust him to take the kids out alone and its awkward and upsetting for me to have to see him. The kids are 4 and 7 so too young really to explain to them what has happened. Ive also just found out I have a minor medical condition which while not a massive deal isn't properly sorted yet and it can affect clarity of thinking so any advice would be helpful. Maybe just tell him we need to see him even less often? Im a bit concerned how he would react as well, he knows where the kids go to school etc.