Should I give it another try?

My ex husband is a good person who makes all the wrong choices. We have two beautiful kids and where married for 7yrs. We recently got divorced becuse he cheated on me numerous times. Now that we're not together I truely believe that he's changed he is a completly different person and has asked me to give him another chance. He is a good provider and a great father. But Im not sure I can foget or forgive his betrayal. What should I do?