The boat has longed sailed for a relationship with my ex and myself. But he now has a new girlfriend. He has always said since our son, he does not want to get married or have any other children. Our son is three and every night, in the middle of the night, he climbs into bed with us we are working on this behavior. I recently found out from our son he was even dating this woman and that she is spending the night regularly. My ex and I have always had an open honest relationship, but he pet this from me. My issues are 1. She's in bed when our son crawls in bed with daddy and 2. My ex wasn't honest with me.
What do I do? He has said he wouldn't like it if the tables were turned. How can we do what's best for our son?