Re: Am i overreacting????
I'm guessing you are used to his name-calling, threats & immaturity to some degree. Your partner seems to have no filter in how he speaks to you and I'm guessing this is a long-time pattern for him and it's likely a pattern that you have come to tolerate & tacitly accept.
The dog is surely an emotional, hot-button issue and I agree with your take 100%. But ultimately this is not about the dog, but how you both communicate & negotiate & problem-solve as partners. When cooler heads prevail maybe you can together set some ground rules in how to "fight fair," ie no name calling, no threats, no running away, etc., etc.