During the first 6 months after DDay, we had amazing sex almost every day, sometimes 2 or 3 times a day. For as much as it was hurting as hell, sex was really amazing. I can not explain, I guess it was a mix of feelings of being about to lose what we had, the feeling of learning that she was desired by someone else, and also that she desired other people (this is hard to admit, but yes, this can trigger a new level of excitement). We also lost some fear of talking about our desires, which was good. We experienced some fantasies together, which also helped.
Of course things cooled down over the next months, but on month 9 after DDay there was this episode when she was truly rude to my parents (humble people who never interfered in the relationship and who are incapable of being rude to someone), and from this day on, the enchantment was broken... the "me" who initially thought that she was worth R started questioning that... and over time, we have grown apart.
Now, 3.5 years after DDay, we don't have sex very often (mostly because we have a 1 y.o baby boy), but when we do, it's very good. We are both in good shape, there's desire from the both of us... BUT... of course something is not right. We are mostly roomates instead of a real couple. We share a home, we share responsibilities, we look after our baby, but there's always something wrong. And talking about it won't help, because what happened is in my head (and will always be), and because of some childish behaviours from her side, when things are not the way she wants them to be. Admiration is constantly being lost.