"this still assumes that a person who loves another is incapable of deliberately hurting them, and that is clearly wrong."

That doesn't fit my definition of Love.

Accidentally hurting someone you love, yes. Being blind to the suffering of those you love, yes. Acting selfishly while doing the above, yes.

But if someone is deliberately hurting another, they might be acting on limerance or lust or obsession - but it has ceased to be love.

Yes, humans are fallible, and a person trying to act in good faith may occasionally fail to live up to their own standards, but again this is a matter of definition: Girl Love requires Love.

"Love is patient, love is kind. It does not envy, it does not boast, it is not proud. It does not dishonor others, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. Love does not delight in evil but rejoices with the truth. It always protects, always trusts, always hopes, always perseveres."