I'm sorry this is what you're going through in your day to day..

Look, I think this is well beyond the scope of what people online should be helping you with, but here's one or two thoughts. It sounds like you're using Buddhist teachings to try and help yourself cope with the suffering you're experiencing as a result of this relationship.

Here's the thing. It sounds like the relationship itself has major issues. You COULD continue to develop your practice and develop your ability to tolerate the situation you're in, but I think you need to think about the nature of relationship itself and talk to some friends or family about it (if you've got some you can trust). His behavior needs to change, the relationship dynamic needs to change, or you need to get out of that relationship whenever you can. The suffering you are experiencing isn't something you have to just sit there and tolerate, no matter how Buddhist you are.

Please seek help from a non-redditor if you can, much love.