pathetic worthless scum who doesn't deserve to show his face and not be ashammed

i haven't said much on the topic of a-use-to-be-good-friend dragon because well now she is a-use-to-be and not a currently-is-goood-friend.
the thing is she likes to steal other girls boyfriends lucky for me my record of bfs is a record high one :P so problem there but she started hanging out with this completely ugly (inside and out) guy in grade 12 and the thing is she pounces on any guy who gives her a speck of attention, anyways she and this guy hang out i don't like him but well they are only hanging out right?? WRONG.
this guy lets call him shreck (because he looks a lot like shreck-minus the green) see shreck has a gf at this point in time so dragon decides to become friends with her......... it's a really long story (about 10 months worth) but the gist is she befriended this girl to get closer to shreck and her and shreck snuck around his real gfs back only to make her cry at school a lot because she was so confused and didn't understand why shreck was cheating on her but when she said this to him he told she was paranoid making her feel guilty, eventually she got really depressed and dumped him and he didn't care he just went to dragon.

i tried telling her to stop but she didn't care now she has lost her friends and their respect and this guy is complete scum i went up to him and bitched him out for what he'd done to such a nice girl (not dragon) he thought it was hilarious and walked away with dragon.

the worst thing though is he slept with his gf and right after went to go hang out with dragon after not even saying goodbye to her or acknowledging her existence once he got what he wanted-complete scum. i know this because she told my friend while she was crying.

and i have lost complete hope that there is a guy out there that likes you for who you are and isn't just after something, it's sad but true, and it's not just this experience that convinces me of this.