Foids of AITAH when a moid won't act as a meat shield while getting nothing in return

You were interested in ensuring her safety only while it was possible that she would date you. The second she said she just wanted to be friends you suddenly couldn't care less.

Classic "nice" guy behaviour - act like you're a decent person/good friend, but drop the act when your advances get rejected.

this is everyone behaviour tho. the equivalent is when women suddenly switch off the sexuality as soon as she learns there's no chance of getting what she wants which happens all the time.

in fact nice guys are more likely to keep up the act in the hopes that she changes her mind if he intensifies the niceness