Isn't the duality of human kind interesting. We want to be selfless and selfish at the same time. There is a section where you wrote about the selfishness of love. The "I love you because" section. That is the problem with love and relationships. We both want to be told why people love us and feel the need to tell people why we love them. Love, or whatever it is, in it's core is an unconditional thing. Not to sound naive and dreamy, thinking of my one true love, but love is not something that comes with a because or should need a because. I have found as I have gotten a older, that I love people for the simple reason, that I do. No more, no less. I don't wish to define it beyond that. I your title and the first paragraph or so suggest, we live in a world of single serving people, thank you Tyler Durden for that line, people you meet, connect and then throw away. If that is the world I am forced to live in, then I choose not to define what it is or why I love someone or they love me because once we find the what and the why it allows us to also define the why and the how of the demise of the relationship. I am not advocating being blind, deaf and dumb in a relationship, just to let go of what we don't need to know live for now.

That was one stream of thought, so it might sound like a drunk person wrote it or someone who has no idea what they are talking about. I will take either designation with pride.