Most Helpful Guy
awww sweetheart your not stupid your having mixed emotions its very common and perfectly normal there is no need to feel sad :)
Most Helpful Girl
if you feel used, i think you should either kick the jackass out of your life and move on to happier opportunities, orrr you can talk to him.
if you talk to him, make sure to speak your mind and tell him you won't be having any of his crap from now on - and then dont take crap either. if he doesn't deserve you, get rid of him. it doesn't sound like he deserves you.
if you decide to move on (if so, go gurl! you're strong!), then go out with friends, put on a nice outfit, make yourself feel pretty, and start looking out for other cute guys - if you find a crush or any other new interest really, itll be a lot easier to distract yourself and move on and be happy.