I need advise if dont know if I am being stupid

I never post but i am so lost rn. My ex and me were friends for two years before we got together and that was honestly the best time of my life.after i broke up with her we stopped all contact but she has just messaged me saying she misses me as a friend but I know this cycle better than anyone it will just get messy but I miss her I really dont know what to do. She is the only gay women in my life and it is really hard for other people to understand things but I dont known if I am just being weird and low key co-dependent. Please help a girl out. Literally any advice is appreciated.