I want to analyze everything Sam said to her--there's an edge to their conversation that, just... encapsulates why they are in love as well as why they can let each other go, or something. Argh. But, mostly, I want to say that Sam was politely not telling Kara, "I came, 'cause I'm not cheating and I like getting laid." was part of his reason for showing up....

I vote that you just want one. (Your theory is intelligent and such, I just do not want him to be a cylon)