I recently pulled the plug on a relationship, is is it good to feel guilty?

i recently pulled the plug on a relationship and i feel guilty. she ment alot to me and it all went downhill. she ran twice and i upset me but i delt with it. then she started this mind game thing of dating others and so on. the second time she left she said because she didnt want to feel guilty if she didnt talk to me. i find that just a bit of a screwy reason to leave someone. in the past week i've expressed my feeling and what not but soemthing just rubbed me wrong so i pulled the plug. she said that i was only running out of fear and so on.she really tryed her hardest to make me feel bad and even called me a jerk. just cause i told her that i didnt know what i wanted and just needed myself so i can work on myself. she still insisted that i was a jerk. does this make me a jerk? should i feel bad?guilty? It does suck leiving someone you care about, i know but i feel horable within. does that meen i mite regret this action? i just dont wanna feel bad. what should i do?