No it isn't just water under the bridge and serious enough that you need to settle it now before it becomes buried but surfaces again when something else goes wrong, only this time adding to whatever the new problem is.

I agree with JJ and Orchid it sounds as if maybe he had something else bothering him, from work possibly and took his frustration out on you. Men do that, they are such children.

I never felt the need with any of the men in my life to have another woman qualify my feelings or beliefs. That is a sign of low self esteem.

Keep an eye on his drinking, it can be a sign of weakness on his part, you know like: Drowning His Sorrows!

But when all is said and done, he is your man, your problem and unless he makes you feel good, feel happy, feel beautiful, feel whole, then maybe you are simply settling and that's never a good situation...
Me, I'd rather have a good dog...