Gamers can be romantic and if you don't believe me, then the Left 4 Dead 2 proposal will prove you wrong.
YouTube user EGBTMagus decided to ditch the conventions of kneeling down to propose for a completely different approach. He created the Left 4 Dead 2 proposal. While the zombie survival game is probably the last place anyone would consider getting engaged in, it worked out really well. He had an individual named RT Frisk modify one of the levels so that he could propose. The level strips away to a dark space that reveals loving messages to the bride-to-be. Eventually it leads to another area that asks her to marry him.
Looks like the couple that survives the undead together, stays together.