What is the acceptable procedure and would you put up with your ex not being around most of the time re 'work'. Only managing to have the kids 3 times in a.year then i find out he not only has girlfriend number 4/3/yrs (that i know about) but he has sneakily played happy families with her. No knowledge or consent from.me.but introduces her over a meal and they go for a walk and to her house!. How should i react?