Ann,

He's not married to Lana -- at least not yet.

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Yet the longer he went hiding what he was, the more distant he felt from Lana. All she saw was the image of normality that she wanted to see. He felt like he was drowning, and now that she was pushing for marriage, he sometimes found himself wishing he could fly away forever and never come back.

He’d been losing bits and pieces of himself for as long as he knew her, sacrificing the things that were important to him for her sake. It was almost as though she’d been intentionally isolating him from everyone else in order to have him to herself.
And we can always hope (along with him) that the situation stays that way. Also, his parents are dead. In fact, except for returning the planeload of passengers to the other AU (not the one we all know and love, of course), he really has no reason to return.

-- Snave