Relationship vs friendship

Ok so me and my friend were wondering what's my important a relationship or a friendship?I say relationship but well my [[friend's]]boyfriend has been alittle to close 2 this ugh *cough*sk@nk*cough* well I don't even know her lol well he's been kinda talkin a lot about her and well its gettin on my [[friend's]]nerves does he have a crush on da sk@nk or what?well please help because both me and her are confused!!and I don't think [[she]] should be with him if he's gunna mess around with da sk@nk lol if you need for details which I can surely give just funmailme! And btw they guy and sk@nk haven't been friends 2 long atleast I don't think so lol I call her sk@nk because I can't post her name on here because other people might see lmao!

well first of all I would start off with saying..
you and her have no reason NOT to trust him unless he has done something to betray it..
second.. talk to him about it.. don't get all made, just casually bring it up..
and if you don't want to do that..

then here are somethings that help figure it out

1. how does he look at her, does he look like he is really focusing, or kind of just nodding along
2. when he looks at her, does he kind of stare? if he does.. this means that he is kind of... deep in thought about her.. like "What could she be thinking right now."
3. sometimes guys are really good friends with this one girl.. and sometimes they need that girl to casually flirt with in ways that he doesn't want to flirt with you... (rudelike, TOO sexual)

last.. well I am not a man.. so I don't know.. but I have to say.. put yourself in his shoes.. if you were a guy.. what would attract him to her.?

BUT MOSTLY OF ALL

guys are all different.. so you have to think about your guys overall attitude
if he has done stuff with other girls, hooking up. (regularly)
then make sure you talk to him

mainly just talk to him.. because it could all be a misunderstanding.. he could just be a flirt.. flirts with a lot of girls, but no action.. a lot of people are like that.. so just ask him what he thinks of her.. but yeah