Let me get this straight. You were told in OOC but not IN CHARACTER that you were being rude by... daring to perform before someone else? It sounds like you met a guild drama queen, if I was there i'd have given her a piece of my mind. That is bullying and never mind metagaming. They should apologise to you for upsetting you so much that you logged off. You did nothing wrong. They are more experienced in RP therefor if they have a problem with something you are doing in character, it should be expressed in character, they think they can get away with bad behaviour because you are new.