How does one move on?

Okay so say you're madly in love with somebody and there's this place called Proposal Rock. So you take your special lady or male friend there, cuz you wanna sweep them off their feet. *contains giggles*

You get the ring together, you ask their parents for their blessing, you tell your friends, and you're all set for this momentous occasion.

Now what happens, if things don't go quite as planned. What would you do if things took a turn for the worse?

http://ca.news.yahoo.com/s/capress/081205/world/proposal_death

Well things went terribly wrong for this guy's proposal. He went from down on one knee to turning away from a huge wave (coward!) and then turning back to find his girl literally swept off into the sea. The body has still not been located. Her family is obviously devastated.

Can you imagine seeing this in a movie, you'd be on the floor howling. Beautiful sunset, 2 ppl in love, and then bam! The waves come crashing in, the girl is gone, and the guy is left on his own.

But this is reality and I'm curious as to how this guy moves on. We've all got our baggage, but wouldn't you be scared shitless to propose again? Would you risk falling in love? Do you stay single for a lifetime in the hopes that one day your lover will return? After all, this one could've been taken ashore to some island, nursed back to health, and then spend many a years journeying back to this guy.

I guess the real question is after your fairy tale is over, how does one move on?