I had a little 'thing' with a teen friend one night, am i a ?

no you honestly sound like you are biual or bi curious, you are not even close to being fully mentally developed or possibly even physically, but it is possible that you are , don't worry about it, you will figure it out :) and being vulnerable can cause mixed feelings for someone you are close to, i was the same way, but it turns out that the person that i felt that way about, we actually got together and have been for almost a year now, i am madly in love with her :) so just don't worry about it *but make sure you keep an open mind about thing ok :) and the *REAL* meaning of being biual is not to like both es but to "freely fall in love with whomever, no matter the " which is a big part of keeping an open mind, i hope it helps you