I had a long-term partner (15 years) but the relationship fizzled out for me. Reasons for this are multiple, but relate to his refusal to compromise on anything, ever. Things such as living together, marriage, emotional intimacy. I still care about him a lot, but ultimately, the one-sidedness of the relationship was just not enough for me. I'm OK with this now, although a few years ago, I was heartbroken about it. But we live and learn. And I got over it because there was no other option. He steadfastly refused any meeting in the middle.
I'm not entirely sure of the causes and the links, but in addition to the emotional element, I no longer wanted sex with him (or anyone - I'm done with relationships). It could be that post menopause, the drop in my libido is physical. It could be due to the state of the relationship. Or I suspect, it's a combo of both.
The issue is that he still wants what we had before. 3 years ago, I explained my position and although he was very upset about it, he seemed to come to terms with it. I told him I understood if he wanted to try to meet someone else, if he wanted to cut contact with me. Basically, to do whatever he wanted/needed to do.
Now, we see each other 2 or 3 times a month. I have a GD that he is a step-grandfather to. They have a brilliant relationship. My GD would be devastated if my ex were no longer in her life.
The issue is, that my ex, now my friend, has started asking for us to return to our old relationship. I think it's because he wants to reinstate our sexual relationship, but also because his life circumstances have changed and he's lonely now. (If he'd been proactive about these circumstances, our relationship may not have ended). I have no interest in this. I no longer feel this way.