How would you feel?

Been with my bf for 3 years and Ill admit, I have anger issues. It’s nothing new and he’s known me to be like this since day one and of course I can understand his frustration. I don’t hit or anything. I just always turn to anger as a primary emotion first instead of crying, being sad, etc. any who, I’m working on it and he tells me he won’t marry me or pursue me if I don’t change.. which I get it but at the same time I feel that he has a lot of flaws & I could tell him the same as well but I don’t because I accept him 100%.. I don’t say anything when he plays the game all day and ignores me or never cooks and chooses to have me pay for everything while he just plays the game and does nothing , etc.. I accept it so I guess I’m upset that after 3 years.. he just thinks I should change myself by now.. what would you do? Is my S/O being reasonable?