In life on mars, what happened to gene's wife?

Answer 1

Go ask in the Television, Drama section.

Answer 2

She was captured by the Martian Mujahadeen

Answer 3

Interesting question.  We never see her and the world is a creation of his own after his death in 1953.  I think this means we can assume he has some kind of unwitting God-like control over his plane of existence and that if we don't see her, he can will her out of being.