I agree with everything you say above about Lee. He feels things deeply--not just that, but he thinks about them deeply and explores them fully as well. So, yes, I think he would have interpreted Roslin not confiding in him as evidence of personal failing and also he would feel so alone and lost.

Good point about Adama in comparison to Lee as well. I see how everyone *needs* to believe in Adama's strength even when he acts out of line, but it's not necessarily right or fair. Lee is far more often questioned, second-guessed and attacked for his actions. When he's already doing all that to himself anyway!