I think in your shoes I would ask myself how to remove myself from the situations in which my temper was triggered until I learned better how to react in different ways.
Your gf and you probably trigger each other, or surely drank together, which makes me ask you--is her drinking a threat to your sobriety?
I would do what I could to protect my own sobriety, much in the way you have to save yourself from drowning before you can save another...which would include leaving the relationship, but that's me, you do what is best for you.
Your relationship with your gf is probably unhealthy unless both of you have found extended sobriety.
Sometimes a long break in a relationship is the best thing for it.