I've posted before about my five year relationship with my OH. We don't live together. He started out touchy-feely, kind, lovely, pretty much everything i wanted in a partner. But slowly his total lack of ability to empathise (not just with me, but anyone) has come to the fore. He's still kind, but unable to understand that his behaviour isn't normal. Example, I went to kiss him and he backed away with a horrified look on his face. When we go out anywhere he walks ten yards ahead. Doesn't consider me when buying himself food/drink. I asked for a back rub (had a bad back) and he stuck out his leg for me to rub my back against. Things like that.
Now, given his lack of ability to empathise, how do I put the 'this is over' talk we're having tonight? Can he understand how I've been made to feel over the course of our relationship, or should I keep it simple for him (he's going to want to know 'why'...)