Did i cheat on my girlfriend?

Everybody has their own separate opinion of what cheating is. In my opinion, I am sorry to say, yes you did cheat on her. Not to the worst possible extent (you didnt have sex with them) but its still cheating nonetheless. Sounds to me like you really are into this girl, but at the same time, deep down, it sounds like you dont really know what you want. What you need to do is maybe take a step back, pull yourself from the situation and actually look at it. You are into amanda, but you also are into her friends. Whose more important? and are your feelings about her friends merely because they are into you? There is a difference between innocent flirting, and the kind that gets you in this spot. Before you talk to amanda about it, find out what you want, that way you go into a serious conversation with a purpose. Either to save the relationship, or to do the best thing for both of you and it so you can pursue someone else. Best of luck to you, hope everything works out.