Girls, breaking up over a joke how is it my fault?

i was at a house party (me 23M and 4 girls all between 22 and 28 my girlfriend 23 was there) we was playing truth or dare and i got dated to streak my girlfriend immediately freaked out saying no, i said i’d do it as it’s the game she got annoyed but i didn’t understand why. i did it then afterwards she wouldn’t talk to me. now I've found out she wants to break up with me because she said she’s embarrassed i showed all her friends my “tiny dick” and now they all know and its too embarrassing for her.

wtf can i do about that?

Girls, breaking up over a joke how is it my fault?
Post Opinion