My sister is 16 and suffers from Aspergers, meaning she finds it difficult to make and keep hold of friends. She has a lot of friends online, I was aware of that, but recently something new came to light.

I knew she'd been calling a guy who lived in Holland. She claimed it was a female friend her own age, but I could distinctively hear a male voice down the phone when she walked past. I shrugged it off and didn't think much of it. She started becoming glued to her phone, wracking up £300 per-month phone bills which we can't afford.

She left her Skype logged onto my computer yesterday and yes - I went through it. This guy is 23, lives in Holland, and appears to be a total creep. He forces her to give him all her passwords to social networking accounts to 'prove she is loyal', makes her send him nude photos and told her if she did not urinate herself on webcam for him he would put her photos on the internet. He mentioned something about having sex with his dog on webcam for her, to which she replied 'no, thats gross and illegal', and he said 'not in Holland it isn't.'

I'm really not sure what to do. It mentioned in the messages that he was coming to London (where we live) in the summer and wanted to meet her. I've been my sisters young carer for 6 years now as our dad is not around and our Mum suffers from bipolar disorder. I don't feel I could tell my Mum as she already has enough on her plate, and if I told my sister directly I knew about it I'm sure she would flip out and insist on continuing this horrible, messed up relationship.

Yes, it's very weird and complicated. That's why I dont know what to do. I'm worried for her safety. He stops her from going outside with threats, he calls her an 'autistic piece of ****' over skype and blackmails her with photos. I love my sister and want to help her. :(

I'm 18, I've been with my boyfriend for 2 years, and I love him very much. Never had he been violent towards me before. He's always had a bad temper, if he get's angry he has to be left alone to really cool off or punch a wall or something, but it was never like treading on eggshells because I always made him feel better and calmed him down. I didn't really mind it, it was just something about him I had to accept, but lately things have become worse. Before he used to get in this angry state about big things, like if someone was insulting him or me, and when he found out his sisters boyfriend was having an affair, and that's fair enough. But the things he gets angry about now are much smaller: if something isn't working, if theres nothing on Tv, sometimes he just wakes up like it. I've just been putting up.
Last other day his friend died. They were very close, and I was comforting him, trying to cheer him up, I made him his favorite food, and he threw the plate on the floor and slapped me across the face, hard too. And when I got upset he said it was my fault for thinking something as pathetic food was going to cheer him up at a time like this.
He's a different person to me now but I can't be without him. Do you think he was just having a hard time and I should give him another chance? I really don't think I can be without him, he's like an extension of me now, I don't know anything different, I can't imagine myself with anyone else which makes me think he's the "one". I just don't know what to do, I feel very trapped. Please help. This was 3 days ago and he's acting like nothing happened. :(:(