On the other hand in our culture they're pushing to always blame the man "Scarlett letter" style whenever a woman sleeps around.

Sperging out online about it isn't going to resolve whatever really happened but these stories seem to get longer and longer and more ridiculous as time goes on. I mean really - what guy thinks to himself "you know what I really want to do is have my girlfriend fucked with the dick of every other guy I know". 99% of men find that just disgusting.