I split with my ex about 3yrs ago now and although he has set times to see our son, 2 evenings a week for a couple of hours and every other weekend from Fri to Sun, we've always been able to be flexible about this. The only problem I have is he is constantly introducing our son to his latest fling. Our son is autistic and becomes very attached to these people very quickly. Unfortunately these relationships only seem to last a few months and my son becomes upset at the fact he won't see these women again. I am then left to pick up the pieces. I have asked him not to include Alex until he is absolutely sure that he is in a lasting relationship. He has just brought our son back from holiday and it turns out he took yet another new girlfriend with them and told my son not to tell me about it. I have now told him that he can only have supervised visits for now as a result. I am furious that he has brought yet another complete stranger into my son's life and that he expected him to lie for him as well. Is it unreasonable to ask him to wait before he introduces these people to our son?