ha ha! No, the legal marriage part of this eludes me as well. I guess I understand her motivations to apply her feelings to a robot, but not to want to marry it.  I think society is probably the most isolated it has ever been while simultaneously being connected via computers. This is the thing causing robosexuals, i think.
I am unsure if i could be a robosexual for real or not. I do have some real issues forming relationships, and I actually dislike 99% of humans (sad to admit this but it's true.). So a robot if advanced AI was involved sounds really exciting to me on an intellectual and emotional level (not sure about the sex part because I don't really need anything except my own hand for that part.) It's all really bizarre, because we are seeing all this change before our eyes, in real-time.