My 2 DSD (16 and 12) live with us full time. We've had our issues but we've generally got on well. I now find myself really struggling with the youngest. She has to be in the centre of everything, never leaves my DP's side etc. But lately I've noticed he jumps on anything I say to her and undermines me. I suppose he's picking up on our strained relationship and being over defensive but he's making it worse. If I do ask her to do something now she resents it, and then I resent her. I can't detach as we all live together and she is with us constantly. I don't know why we are suddenly clashing - I think its my DP not seeing any wrong in her at all when she can be quite challenging x I'm even going to counselling to improve my relationship with her but it just feels so hard - how do I get through the next few years before she grows up and keep my sanity ?