My 16 year old step daughter is very ungrateful as well as her 13 yr old brother. She is good in school, but he is about to fail this ear. They live with their mom and are supposed to have dinner with their dad every Tuesday and also spend every other weekend with him. My husband pays child support punctually every other week, and I might add that is a good deal of money, he provides them with their own (top of the line) cell phones so they can talk, not only to him, but to his family and their own friends. Well, I have been with my husband for 3 years now and I have seen them sleep over with him 3 times; countless times on their dinner night, they are upset for something and they won't even talk to him, they won't pick up the phone when he or any member of his family call, they won't go to any family reunion saying that he has a weird family and their mom says that if that is what they want to do, she will not make them. I do think he is giving them too much more (and not just financially) of what they actually need, but I just don't know what to do. I get so frustrated when he comes home almost crying because even when he tries his best, and I know he does, they still won't treat him as the dad.

Please, what can I do?