Me neither. 
I will first convince myself it was something out of that guy's
normal character and put it at the back of my mind, but future acts
committed by him may turn those memories into a lethal
weapon.
Aiyah but seriously, why think so much? I doubt anyone can
completely forget anything. If most girls won't forget, so won't
guys... probably. Past actions don't matter as long as your future
actions are strong enough to overshadow them. 
