I'm A 15 Year Old Bi Boy I'm Having Problems With My Female Friend?

Your friend seems like she blew it out of proportion. Maybe you shouldn't continue talking to her if she is constantly acting this way. You could tell her that it was all a joke, and you're sorry for leading her to believe it wasn't and that you are no liar, your only intentions of this was to get a reaction out her. Make sure to say sorry.