Is telling my ex I still love her too much to see her again the wrong thing to do? Why can't I move on?

-Things went wrong due to things I dont want to revisit and at 26 my longest relationship ended. I moved 6 months after and went back to visit my parents this weekend (have not seen this particular friend group in about a year). I thought I could avoid those feeling now that i was moved away and there was never a chance we could try again.
- Unfortuately the second I walked in and made eye contact with her butterflies came back and I felt a lump in my throat the entire night. I completely avoided the friend group and talked to other regulars I used chill with before I moved. I left the bar first and she called me wondering why. I simply replied with " I just realized i still like you too much. I hope everything goes amazing in life for you but right now seeing you broke my heart all over again.". I dont know why I reacted that way to her but feel bad. I'm back 2 hours away in my new city and still have this lump in my throat when I think of her. Even last night I couldn't sleep cause memories flooded back.
Is telling my ex I still love her too much to see her again the wrong thing to do? Why can't I move on?
Post Opinion