I've always tried to maintain friendship with my exes, they were my friends before they were my lover and that in itself reassures me that I am okay with being friends to this day. However, I've noticed the one's that I was in a relationship with for short amounts of time are the ones that have faded away over time. The two that I was in long term (6yrs and 7yrs) are the two that are my best friends now. The 6yr relationship ended 12 years ago and the 7yr relationship ended 3 years ago. I can ask either of these women for anything and they are right there for me, and visa versa. I find it's a sore spot for new relationships for me to have this friendship with them but I try to reassure the new or existing relationship is that these women are my exes for a reason... I never go back to exes. But I never let go of a good friend either cause true friends are very rare in this lifetime... And as quickly as it was to get over the hurt of the breakups, both were only about two weeks before we realized we could maintain our friendships.