yoga - i wasnt scared, i just didnt want to hurt him. I felt bad for hurting him, but had to do it, because i couldnt sacrifice myself by putting his needs before my own.
and no, i think if your self esteem is good, then no wave of emotion knocks it out. I know waves of emotion have hit me ( in a situation like snapes, that started just before hers did, and we spoke about it lots) I adored this man, i was a sobbing on the floor, unable to breathe wreck. BUT - in hindsite, my crappy self esteem ( which i didnt think was bad at the time) had left me very vunerable, and i took whatever behaviour he threw my way, making excuses, or explainations, or looking for hidden meanings, or whatever lame thing i did. Had my self esteem been good i would have seen it for the pile of shite it was, realised i deserved better than the pile of shite it was, and walked away without a second glance. Instead i wasted 3 years being hung up on someone, hoping they would realise how great i was, hoping it would all work out eventually. If my self esteem had been good i would have walked the first time i was messed about.