The reason is not like a reason, it's like somethin you like in the person, something you feel is important to you. Loving someone for a reason is selfish.

Ok, do mothers love their children for a reason? When a baby is born, he is ugly actually like a potato. He is not very fair, has no hair, the head is deformed. But the parents love them, what's the reason? There's no reason, it is unconditional.