I cheated in a good relationship and now I’m trying to figure out how to break the pattern

I do believe that everything happens for a reason. I think that her leaving me for what I did was totally warranted and it’s given me a lot of time to find myself. I have been stuck in a negative pattern of cheating in my last few relationships. I need to get to the bottom of why it is I do this. I want to grow and I’ve been putting a lot of effort into trying to find myself spiritually again. I don’t feel I’ll be able to full ascend if I don’t break this pattern. Any ideas on what I could do or look for?