DD is 13. Me and her dad split up when he had an affair with OW 3 years ago and they moved in together. Me and XH have very different personalities, and he and OW have similar personalities. DD is very much like her dad and therefore like OW. So I understand that they have more in common and it's natural that they would get on well, which is good I suppose. I just feel hurt that she seems to prefer OW to me, her mum. She spends equal time with me, and her dad and OW, and she seems happier when she is with them, she certainly behaves better. She can be rude to me and not want to go out or do anything when she's with me which is frustrating. I know children sometimes behave worse where they feel safest. Any advice on how I can have a better time with DD, and not mind so much about the OW situation?