In my opinion, love between humans are always going to be subjective.
Heck, I often read news from third world countries in which someone made an underage girl pregnant because "they loved each other" or someone raped another person based on "love."
That's why I agree when someone says it depends on how you interpret love.
There's no greater love than someone who lays down his life for his friends with no expectation of getting a return.
By the way, why do we always have this kind of thread in spring and fall seasons?
Love is in the air on Earth's southern hemisphere?