How do you feel about me winning the battle but losing the war?
It still sounds like progress to me! Care to explain in details?
I think I won the battle with my ongoing temper problem, but now she's threatening to leave me if I don't manage my temper.
At least you tried, but it sounds like you seriously need to consider seeking professional help because you probably do have a bad temper. You should try to fix it not only for you but for your relationship. Your girlfriend deserves better from you.
I also think it is important to understand the other side of the story and think about how I can make things better for myself. I may have a temper, but she says I insult her and start calling her names several times a day!
You may think that this is a battle for you to fight, but there is no winner if you allow your mental illness to go unchecked-- trust me, I've been there! Just see a medical professional and ask them for help, that way you can win your war.