This breakup was three years ago, he apologised two years ago and we've not spoken since then. We work together and most of the time when we have a shift together, he feels the need to talk about the girls he has slept with, how his list of conquests is endless and has described all of the girls he has previously seen as 'check points'.
He knows how important the relationship was to me (as he was my first boyfriend and he knows I cared greatly for him, although we didn't see each other for long). Is he saying these things out of hate? If so I don't understand why as I don't ever talk to him or about him.