Does This Make Me a ? HELP!!!!!?

A best friend of mine slep over in my house last night (a girl), both of us have boyfriends btw. But when we were in bed, we were having a conversation about things in life, and we got into a disagreement. We started to wrestle, but some how it turned both of us on.....eventually it got out of control and we took off all our cloth. We wrestled with no cloth on and we were kissing aggressively during the whole thing. I feel really weird right now. Was it just a one time thing? or am I actually a ??