It sounds like they lose customers based on who they like. I would just go to another 7-11, than deal with weird aggressive behavior for questions that aren’t out of line.

On the petty side, I would be tempted to tell them I found another 7-11, and I’m sad I wont see them anymore, since they brightened up my day.

“The other one I go to now is owned by an engaged lesbian couple! I’m going on their honeymoon with them, and planning their baby shower! I’ll miss you two!”