Most Helpful Girl
Of course. I don't think it is possible to forget your ex, you will be eventually over the person, but you will sometimes think about the memories. There is nothing wrong with that, completely normal.
Most Helpful Guy
Of course, but usually for two reasons only.
1. How I am grateful for growing through that point in my life and where I am today.
2. To remember why I was with that person in the first place. (In my case, she meant well. That was Noble).