Well, as long as it’s not something excessive or somehow you romanticize too much (if you have a significant other), I think that’s fine. Since some or a lot of people in our life (including ex(es)) have their own part which brought us lessons to learn, etc. They are parts that made us the person we are today. So, I personally think it’s okay to just admire and respect them as a person. There are exes of mine or people I used to know who took huge parts of my journeys as well. So, I understand.