Hanging out as a family and all of a sudden my partner gets up and leaves to go to the store without a word

I mean, it's just plain weird?

A bit.. rude imo.

Wait like randomly without telling you? I’m confused.

Was he upset? Do you guys usually go places without saying anything? Seems strange

If my wife did that, id find it very strange and mean🤣 because we never part ways without a hug and a kiss. Ever. And we generally tell one another where we are headed. So id find this weird as hell.

I would speak to him about it?
He may be going through something mentally and being around people wasn't helping.

That’s weird, my hubby kisses me goodbye every time he leaves the house, heck my hubby just went out back to do some yard work and he kissed me before going out in the backyard. That’s just rude to up and leave without saying a word

I'd be pissed, I mean you don't have to ask permission, just let me know where you going cause like that's just weird and kinda rude. Imagine you did that without saying anything. He would lose his marbles