If marriage was open to any couple in the U.S., I would marry Portal 2. That's how much I love Valve's first-person puzzler, and the video below the "Read More" tag is part of why.
(Please stop reading now unless you're ok with SPOILERS for both Portal 2 and Half Life 2: Episode 2.)
Do you remember that part of Half-Life 2: Episode 2 where the research vessel Borealis is discussed? According to the dialogue, it was Aperture Science's project of "some promise" that "compromised ordinary standards of risk" and "vanished with all hands." Guess who found it? Me. It was in Portal 2 the whole time. Specifically, it was at the bottom of Aperture Science's massive factory, just hanging out.
You can find the Borealis too! Just check out the below video for a look at the game-world-crossing-video of epic proportions.
(For the third time: SPOILERS, ahoy!)