What two games should I get first?
you should probably get a second controller, and games you can play with your girl. get NBA 2K and get your CashNastyGaming on, Borderlands the Handsome Collection, or start slow in you return to gaming with Rocket League, Castle Crashers Remastered, LEGO Batman, Peggle 2, or go with party games like the Hasbro Family games pack with Scrabble and a bunch of their other games, or the Jackbox Pack with 'You Don't Know Jack' and games like that. If you get a Xbox One with Kinect, there's also a bunch of fitness apps/games, and Dance Central
also Mass Effect 1 is backwards compatible if you wanted to run thru that again.