I went out with this guy for three and a half weeks, but I broke up with him when I found out he was cheating on me (with my best friend). I shouted at them both and it seems like he regretted it, he actually cried. He was special to me and I miss him, and the girl he cheated on me with (my supposed best friend) told a mutual friend that 'If she' (meaning me) 'gives him another chance, he'd leave me in a second'

Also noticed that they don't have the relationship we had, it's like he gave me pet names, and we found ways to see each other every single day (After school) , he was sweet to me and texted a lot.. To her he calls her by her full name, he sees her only in the weekend (when her school is like 5 minutes away from ours), and barley texts her.

I can't fight with the guy, he comes to school with me and I'm stuck in the same classroom with him for the next four years.. Not to mention he's on my dodgeball team.

If I give him another chance, I still don't think I'll be able to trust him.

Should I?

Before I answer your little dilema. How old are you?

Why are you asking exactly? I'm 17

You said "i'm stuck in the same classroom with him for the next four years". I figured you were about 14, because in college, your not stuck with a person in a class for 4 years, and it would only make sense if you were a freshman in high school. I'm just asking because my girlfriends little sister is complaining about a 3 week breakup. I told her that "life will hit you alot harder than a three week break up.. try a three year break up" if you are really 17 than I think you are old enough to make this simple logic decision. If a guy is cheating on you with your ex best friend, why would you give him a chance, he is only using you, plus... its only three weeks. I think you should get over it and find a new best friend because best friends do not do this.