That's understandable, you're losing something that you thought you had, that you worked on the whole time - your relationship. Of course you wanted him to cuddle you and make it all alright but it was never going to happen was it? Because if he'd cared about you he's had years to demonstrate that - and not bothered.
Now, when he's losing something ((a housekeeper, someone to help out with money, someone to have sex with (I'm sorry)), all of a sudden it's registering with him what HE will lose. Note that it's still all about him, nothing to do with you. With a man like this, you could be anyone. If you will meet those criteria in brackets - and, as an added bonus, not make a 'fuss' about birthday, Christmas or Valentine's day, then you're the one for him.
His 'bar' is set just where he wants it - high for him (given the huge job description) and very low for any girlfriend he has.
Even now that the relationship is over, he could make it easier for you, nicer even. Take it on the chin that he's been an arse and you're going, apologise to you sincerely but no, it's all about him and always will be.
You're sad for what you don't have and grieve for it a little bit - and then turn your face to the sun and walk away from this selfish clown