Confused

I'm afraid you won't like my answer, but I think it could be anything. I didn’t really understand what kind of relationship your man is with the mother of his child. Are they divorced or are they still married? Relations with a married man is a very slippery topic. I would never dare to do this myself because I know a lot of pitfalls here. You already have a question of trust. This is just one moment. Your man decided to go and spend time with his son. It seems to me that you cannot change this decision. I would say directly and clearly that I do not like the situation with his wife. I would say so that he could not then deny that he misunderstood me. If there is something that you are afraid of, then it will be his direct choice and his direct fault (and lies). "Honey, it happened by accident.. This glass of wine was superfluous.." - this will no longer be an excuse. But all I can really advise you is to let go of the situation and try to look for new contacts here. Online chats on such sites never sleep. You can discuss your problem with someone else.