Me and my sons dad spilt up around 18 months ago, the spilt was not a good one, very emotional and hard. The children seemed to take it quite well as he still sees his sons every other weekend. He was also coming to my house in the week to see them in his lunch hour occasionally but that has now stopped as he started behaving strangly and getting angry with me. He was not happy I stopped him coming over but it made me uncomfortable. I told him he could pick them up and take them out whenever he wanted tho. My four yr old has always been quite happy to go to his dads for the weekend but recently has said he doesn't want to and becomes hysterical wen his dad picks him up. He won't even talk to him on the phone anymore. Me and his dad are both with other people now and the children get on well with both new partners, although my ex becomes jealous about the children spending time with my partner. I'm not sure what to do anymore, things seem to be getting worse with my relationship with my ex and that in turn is effecting my son. Do I force him to see his dad? I really don't want their relationship to fall apart but feel guilty about forcing him to go. Sorry so long winded!! Advise would be great x