your feelings are appropriate given the situation. If you are not sure that you want to stay, you ought to examine those feelings. You most likely feel betrayed and trust needs to be earned back on his part. See if the two of you are open to couple's counseling. That may clear lots of the issues you're dealing with.
Thank you for your response but what i really wanted to know is if you think he'll cheat again because i feel that he may still be talking to her behind my back. ive asked him and he said no. Also I remind him almost everyday about what he did to me.