Sure, you can leave for that reason if you so choose. But if you're currently in treatment for a rage disorder and impulse control issues you'd probably be better off being single for a while anyway. It can be difficult to delve deeply into yourself and try to figure out why you are as you. That process is often easier if you're not at the same time having to worry about a romantic partner's wellbeing and such. Take some time and focus on yourself so you can get better.