The bad situation you experienced with one race was an isolated situation. Don’t let that story in the past move along with you into your future.
So you dated a black guy and he cheated on you. That does not mean that another black man is going to do the same thing. Even if you find a statistic that suggests this to be true, I am asking you to put that aside. Every race, culture, and faith have people within them that will do something wrong. Why? Because we are all human. No one is perfect.
So don’t miss out on a good thing because you are too busy stereotyping and living in the past.