What should be the last sentence of a broken-up lover?

I'm really glad to meet you, but for some reason we have to part. I want to tell you that even though we are no longer together, I still cherish our days together. At that time, I was very kind to you. I may have done a lot of wrong things before to make you unhappy. I apologize here. Being with you has taught me a lot. Thank you. Maybe we will never have any intersection again, but after all, you are the person I once loved, so I sincerely hope you can live a better life, really!