Emily's Cat
Rarely prone to hissy-fits
Neither of these is the point at all. Once again, when we're talking about whether Person A loves Person B, you're talking purely about how Person B perceives the credibility of Person B's love.
Person A either loves Person B, or they do not love Person B (let's keep things binary for the moment, for the sake of simplifying the argument). Person A's observable manifestations of their feelings towards Person B are the only thing that allows Person B to adjudicate Person A's feelings towards them (or to adjudicate whether or not Person A is being sincere in their professions of love).
I'm in no way suggesting that it's not critically important a) for Person A (assuming they state that they love Person B) to manifest their love for Person B through observable acts; or b) for Person B to feel - via their observation of Person A's acts towards them - secure in the knowledge/belief that Person A does indeed love them.
But
None of that changes the fundamental fact that Person A's love (or otherwise) of Person B is something which is intrinsically wholly within the internalised experience of Person A. All that Person B is doing is trying to find ways to confirm (or otherwise) Person A's love for them.
If we run with this analogy, what is being asked for is that Person B is obligated to accept Person A's declaration of love, regardless of whether Person A actually behaves in a loving manner, or exhibits anything that a rational human would conceive of as love. Furthermore, Person B is being obligated to accept that Person B loves them, and that Person A's declared feeling of love is sufficient for Person B to be forced to marry Person A even if they do not believe that Person A actually does love them, and regardless of whether Person B loves Person A in the first place.