Re: Would you marry a near-human alien?
A few more thoughts:
You would probably be more likely to fall in love with a second generation alien, one who grew up listening to the same music you do, watching the same shows, etc. With the internet and the anomininity it brings, you might not realize that your friend is some alien freak thing.
You would have more in common, more things to "click" to connect to with a random alien who grew up on modern earth, then you would with a 100% genetically compatible human who grew up in, say, ancient Egypt. Even if you keep it to just modern times and people, I'm sure there are places you can go on earth where the folks seem totally alien in their ideas and world view.
Internet romance happens. That proves that Love can transcend physicality. Can't say that it's for everyone, but it's out there. Some people also go for farm animals, so a little fur a/o tentacles aren't a deal-breaker for some either...