conditions. Gifts don’t.

You can choose not to give her a gift next time. Or you can choose give her a loan with conditions, like “if I give you this money, I get a say in your personal decisions until you pay me back, or whatever”

But your gift of groceries last week has nothing to do with their trip this week. I wouldn’t say anything. You can make a different choice next time, but you’ve already made last week’s choice.