What would you think if I told you I want to dump my boyfriend?
Why do you want to dump him?
My boyfriend is really impulsive. When he drunk, he's extremley violent.
You shouldn't stay in a relationship if you aren't happy. You should leave him if he's violent. Abusive relationships are a serious issue and you should leave as soon as you can and seek help if you need it.
Yeah! I'm going to dump his ass and he'll feel bad.
You are making the right decision by leaving him. You have said he's violent, so I wouldn't do anything to try to rile him up when you break up with him. Just be calm and straightforward and have a friend there with you in case he gets angry.