He reacted angrily and out of no where said ‘I’m so glad I’m not married to you, I remember thinking, this girl is so flaky it’s not worth it!’ I know it’s him trying to protect his ego, but it hurt me and he’s not apologised, although he’s going around trying to be very nice to me now. He’s since asked me for favours (lifts to work and fetching him things) and is trying to act like it’s all normal and wanting to plan for Christmas and stuff. I’m just numb 😐
When you've done a lot and sacrificed for someone who isn't able to stay on top of their own life for a long time, you can feel very hurt and bitter when they show what you've done for them isn't appreciated.
You're clear-sighted enough to know that his words are hollow - that he's just lashing out against you as a way of defending against his own feelings of inadequacy. His ego is also too fragile to actually apologise, so he tries to 'make up' by acting nice for a bit so that you'll keep providing the relationship services that he both needs and feels ashamed of needing.
People like this are just endless pits of need and negativity. You won't get what you want from him, even when it's as simple as an apology showing some true reflection on his behaviour. He's just not capable of giving it. He's a taker and he'll always be that way unless he recognises what he's like and decides to do a lot of work to change it - therapy, working on his issues, making different choices, maybe medication - there can be a lot involved.
But as long as he's lashing out at you and blaming you for feeling worn out and fed up of catering to him, he's not ready to make that change. The only other person who can change the dynamic is you, by relinquishing the sense of responsibility you feel to care for someone who doesn't care for you in return.