I cant help feeling sorry for my DP, he has got a 15 years old dd and is such a great dad to her and our own DC... But he is getting more and more depressed with the fact that she has now starting lying about how much things cost for school, ie doubling the price of a blazer and school jumper and expecting him to pay, taking or stealing things from our home (make up, perfume... money...), never call him or call him back and hardly come down to see him.. when it should be every other week end... He think she doesn't love him and one day will be gone forever I tried telling him, it is normal teenage behaviour (I think???) and both myself, her nan and her dad tried to talk to her to no avail. She lives with quite a very big and busy family and has I guess her own life, but what can I do to reason with her and make be a bit more considerate? The worst thing now is I start to resent her for disrupting our family life and our relationship... In the past, she has always been so good and never been without anything with us... But now when she is here i feel I cant trust her and it kind of spoil our time together...