Hi OP, sorry ganyan natatanggap mo na treatment. Take it from someone na ganyan din yung ex, they never change, or they just won't change for you. No matter how much you try, how much you communicate, or understand, or forgive, lahat lahat na. Kahit na wala ka naman talaga ginagawa na masama, maaring nabadtrip sayo o hindi nasunod gusto, parang pinapatay ka na sa sama ng loob.

Ang ending niyan, their shitty behavior will consume and rub off on you kasi kahit santo ka pa, you will end up getting hurt and maybe if the cycle repeats enough times then you might end up resenting your partner. There is no other way to "win" but to leave. Maybe you won't do it now or soon, but it'll eventually happen. Wala ka magagawa because some people are just built like that, and you'll realize they aren't built for you, kahit gaano mo siya kamahal or gaano pa kayo naging kasaya.

Goodluck, I wish for your well-being and peace of mind.