Had such a discussion, once, many moons ago, about 'unconditional love' and if it can actually exist between two people?

On a spiritual plane, there can be unconditional love, if you have faith in such beliefs, but that's not between two people.

Though, two people, can promise love to one another, there are conditions. As Akama, alludes to. If you abuse me, I don't have to love you.

To choose to love another person, it's because there are characteristics about that person, that one grows to love. And, the expectation/condition, is about being treated with respect, and to be treated lovingly, in return.

I suppose, one could bring children into the discussion, but that's also kind of here nor there, because you can easily read stories of people who haven't been treated lovingly by their parents, and vice versa.

Some people sense some type of moral obligation, due to their convictions in life, where if they make a promise, promises aren't made to be broken, types of convictions. That brings about altruism, where love is a sense of obligation, through guilt inducing tactics by the other. At that point, is it still 'love' or has it become something, a little more different than love? Does one start feeling 'sorry' for the other, and isn't that now, something similar to 'pity'?