I'd be stoopid if I ever loved that person
That's an interesting take on things that I hadn't considered. In that context it seems that "loving" someone must lead to certain commitments and entitlements? It's a kind of love I'm not very familier with, perhaps.
I've loved smart people and stupid people, for good reasons and bad reasons. But I've always thought of this love as an expression of myself, a reflection of what I see, and not a demand for something more to happen. If someone disappoints me, I wouldn't off-hand think that it was wrong to love them.
Love for me has been more of a gift rather than a sacrifice of some sort.