You get hurt in a relationship if you don't stay out of the line of fire...
Yes I know your partner is responsible for what they fire at you, but you also have a responsibility to stay out of the firing line. This is especially important if you have a trigger happy partner. Please know that I am not minimizing your partners responsibility. I am just trying to get you to control what you can control. Staying away from the firing line will do wonders for your relationship.