Long story short, DP and I got together after he left his wife but she blames me for split. She is very bitter and unpleasant. DP has daughter who is now 15, we have been together about 2 years. We now have 7 month old DD and his daughter initially said she was happy with baby. Then changed her name so it wasn't the same as baby, wrrote letters saying I had never made any effort with her and that she hated me and baby and wished DD had never been born. She has seen her once so far. I have always done my absolute best to get on with her. Regularly changing plans to accomadate her flaking out on her dads visits etc... DP an I now row nearly every time he goes to see her and I feel out of control. Today he went off for a days surfing leaving me at home carless with a baby who has had a temp for 36 hours. He can't see that I couldn't ask him to stay home precisely because it was his DD day. This rant barely tells the story but its like a gaping wound and every time it just gets worse. I think I feel SO bitter because I don't think I could have been more understanding and she is - actually I can't put on screen how I feel about her right now.