I went through that with my 16 yr old daughter. I moved 6 hrs closer to her dad so she could have her daddy close during her teenage years. Every decision I ever made was for her benefit. I went to so much trouble trying to find the best school for her and when I did, I built my life around it. He, meanwhile, had lived his own life all along without so much as even calling her sometimes for 6 months at a time. He wouldn't even return her calls. But when we moved near him she started spending summers at his house. One summer, 2 days before school started, he called and told me she wasn't coming back. She was staying with him. He bought her a car and anything else she wanted. I guess he realized what a joy to have around she was, and his wife was foaming at the mouth to stop paying child support. I didn't feel like a failure, because I know I did everything I could. I felt abandoned. She and I were a team. We were family. It had always been me and her against the world. I thought we were so close. We had so much fun together. I thought I knew her. Then she broke my heart. I felt like I got dumped. It was so embarassing when I had to tell people she moved in with her dad. The automatic assumption when kids live with dad is that mom must've been on drugs or a terrible person or something. I missed out on all the Senior year fun. I wasn't there when she got ready for prom. So, here we are 2 years later and I am just now starting to get over it. I still am so hurt. The only advice I can give you is that I handled it poorly. I am an example of what not to do. I don't own my daughter and she has a right to make decisions for herself. I shouldn't have taken it personally. I let it cause distance between she and I emotionally, as well as physically. I made her feel guilty. I know that she didn't do it to hurt me and that she wasn't actually abandoning me. I'm supposed to be the grownup and I think I've been childish and selfish. We're rebuilding our relationship now, but I wish I had been more supportive at the time and maybe we wouldn't have to rebuild now.