A friend of mine has a new boyfriend, she's been with him for about 2 months now, I really disprove of him.

I think he's controlling, because she never comes out anymore, and when she is invited somewhere she ALWAYS makes up a stupid excuse like some of her family are round or something. Her boyfriend knows I don't like him because I have expressed it, and it seems to me like he's turning her away from everyone, friends mostly. I tried calling her the other day and apparently he told her to delete my number as " I was not worth it".

Last week I went round her house to talk to her about it, obviously he was there as he always is, he practically threw me out, like physically, and she was just stood there in the corner being all shy and not saying anything-which is not her AT ALL. I then came back later when i knew he wouldn't be there , and she told me to leave because he would be back soon and she didn't want anythigng to happen like a fight or something. I feel like she's under his spell and I don't know what to do.

I can't tell her parents because she'll hate me for it, and with the way things are it'll make everything worse. I'm worried because i've heared stories about this guy being relly controlling and abusive, his last girlfriend tried to leave him because of it, then he broke down in tears infront of her making her feel really guilty. My friend is losing her social life and this guy is no good for her, what can i do to make her realise this?

You can't (or shouldn't) do anything. You don't want to be the person responsible for breaking them up, as this will only further damage your relationship with your friend. Unfortunately, this is one of those times where you'll have to allow your friend to learn the lesson herself.

Do you not think she'd thank for me it in the end? when she finally knows what he's like, normally I wouldn't get involved but he has a past of being violent. I think i'll leave it for a bit , but if I notice her with bruises or whatevr i'll definatly tell her parents.

Thing is he knows I hate him and for some weird reason lately he's been saying really sleezy things like " i'd like to see that piece of clothign on my bedroom floor" and i'm just like euurrghh! I really hate him, with a passion! I've always tried telling here about the way he speaks to me, but oh no i must be making it up for attention sometimes I think why bother, but she is my friend so I feel it's my job to get rid of these sleezebags, but i guess i'll have to cool it for a bit.

The problem isn't that your opinion is wrong, it's that your friend won't see it the same way you do. Her judgement is going to be clouded due to the fact that she likes/loves him (otherwise she wouldn't be persuing with the relationship).