So ds 14 has a girlfriend, and since going out with her has changed from a happy go lucky boy to a sulking sly and secretive person, who I do not recognise! I have spoken to him as has his siblings, but still not listening to us, I'm not keen on his girlfriend I got to be honest and have told him as he has lost all his friends because of this girl, he was texting her today about how his brother took his pH of him at 3am and told him to go to sleep so now he hates his brother! I have taken his pH off of him, now as he is constantly tired and feeling ill. I'm really at the end of my tether with him and just feel like he is not listening to what I'm saying, I've tried to be nice and say good things and get her something for Xmas etc but she has changed him so much into someone we don't know. How do I handle it short of telling him to not see her anymore? Sorry if I'm rambling