Not that mm2 related but strange

basically, this girl sent me a friend request and I had no idea who she was since it wasn’t from a game and I didn’t know who she is in general, so I accepted it. she joined my game in mm2 and immediately offered ray gun for sun set, I said no and asked who she was, she didn’t reply. she left then joined me again multiple times and tried talking to me, most of what she said was tags, but what didn’t get tagged was ‘hi bluey’. she then left and unfriended me.

what?? im so confused and so annoyed because who is she?? why did she call me bluey?? huhhh???