I like this girl but its strange because I can't tell if she likes me or this other guy but she treats us both different from other people this guys my friend I'm pretty sure he likes her but once again I can't tell if she likes him I just want to know if she likes me and to be honest I don't want to lose a friend to awkwardness because I ask her out

Edit: the friend is the girl not the guy sorry

If you lose a friend because you asked agirl out than I'd wager he's not much of a friend.

Tell your friend you are interested in her and ask if he minds. Then take your answer and proceed to ask this girl out. If he does mind... well I don't really think he has any basis to object to you asking this girl out.

It's the girl as a friend I'm worrying about losing

OK.

If you really like her than you should ask her out and not dwell on what may or may not happen after the fact. I do believe that it may be awkward at first if she does not accept, however, if your pretty good friends than it should be no more than a couple of weeks.

The alternative is being her friend and letting the fact that she'll never be yours eat at you, I'd take a shot.