Guys seek for advice from girls not other guys. Because most guys think alike, so if one guy's confused, then we're all confused.
This is funny but true...
If you are going to reject a guy, just do it. Don't say they are like a brother or just good friends, it just hurts even more. Tell them that you aren't interested in a relationship and they will respect you.
Not always true...some guys are either dense, persistent....or just stalkers. Hahaha