Boy problems

So I like this guy, he can come off as a player but I've been getting to know him for the past few months. We were talking pretty heavy a month or so ago until I found out he was talking to another girl too after we had sex. I stopped talking to him for a while until we came back to school from Christmas break & now he's been trying to spend time with me & texting me & calling me.. Should I give him another chance or just say forget it & go on about my life? Please I need answers!