Fuck me

Okay so I have a boy friend and he's wonderful like 9/10 great dude. But he lives in another state for army training and I don't know if he's going to come back. Since we started date two other dudes that I like asked me out, and I don't know who I'm happier with but I don't want to leave my bf bc his last girl friend told him she never loved him after they dated 2 years and we've only been dating 2 months. But one of the guys is the best guy I've ever met, like I liked him from the second I saw him. And I don't know what to do, anyone care to help? Thanks guys