I don’t expect anyone I’m getting to know to be a life long partner, I think you’re mischaracterizing what I’m saying here which is: when I meet a person, I make an assessment of them and decide whether or not I’m interested in getting to know that person further. This does not mean I’m expecting anything from them.
If I meet a woman and determine that she’s not someone I’m interested in getting to know any further, that doesn’t mean I’m disappointed, she’s just someone I’m not interested in.
You're leaving out the "stating you intentions" and "seeing a future" part of your argument though which is what I addressed. I think it's safe to say no one (for the most part) is trying to move forward with someone they don't like. That kinda goes without saying. I'm talking about "seeing" something in someone before they have gone through the ringers.

???