Big Brother alum Tyler Crispen is engaged, and he's finally ready to introduce his fiancée to the world. The Big Brother 20 runner-up posted a video via his YouTube channel on Thursday, August 14, in which he introduced the mystery woman - her name is Emily, but Tyler, 30, calls her Emmy - to fans who have been clamoring to know what's been going on since we saw him last on Big Brother All-Stars. "We've kept our relationship off of social media for a long time," he wrote via Instagram in a carousel of pics teasing the video.