So I separated from partner just over a month ago, we have a 3 year old together and i have 2 from previous. Anyway, it seems he has gone straight into another relationship with a girl he knows from his footie team, she has 2 children of her own. Am I right to feel abit concerned about my 3 year old spending time with them all together too?? He doesnt really know her and neither do I. Never met her. My ex has already lied to me about them being together, even after I expressed my concerns. I know theres nothing I can do as he is as much right to my son as myself. I just wouldnt even think about introducing anyone new into the equation yet!