listen...
i dumped sarah in late 2004 and moved out unilaterally in very early 2005. she was cheating on me and refused to stop; she wanted an open relationship, and i said 'no' and i walked out on her.
she couldn't pay the rent, and ended up homeless. so, she ended up at my apartment, and i told her 'no'.
but, we maintained a friendship of varying distance from 2004 to about 2010 or so that involved going for coffee from time to time, and meeting up for walks. and, yes - we were still having sex for quite a while after.
around 2010 or so, she decided she didn't want to talk to me anymore. i never really got a straight answer, and i've gone through various hypotheses, but as far as i can tell, she rejected me because she decided i was gay. and, after almost ten years of a friendship that was very important to me (she's the only person i've ever had sex with), i reacted very badly to that. i valued her friendship very strongly, and hoped to maintain it forever.
but, i've never had any interest in rekindling any sort of romantic relationship with her, at all, and any suggestions otherwise are just flat out wrong - something that i think she actually understands. if anything, she seems to be mad at me because i don't want to get back together with her. but, the decision i made in late 2004 was permanent, and i've held to it as closely as i can. she's had two children, since then - something that i've tried to be emotionally supportive of, but that i ultimately can't and won't accept in any official capacity. she asked me to be her first child's godparent, and i turned it down.
at this point, it's been so long that trying to rebuild some kind of a friendship seems pointless. that's something that makes me sad, certainly - that was perhaps the only friendship that i've ever had that i very much wanted to maintain.
but, the fact is that i dumped her a long time ago, and i've made no attempt at all to win her back since.
i hope that point is as clear as it can be - and it can't be very clear from a distance, i get that.