He invited you over to meet his sister

Premise

Your best friend invites you over under the pretense of gaming because he's been trying to set you up with his sister—he trusts you and thinks you'd be a good match—but he doesn't tell you that's the real reason. He just asks if you can come by to game.

Your best friend Eddie has been your friend for a few years and you two are very close and you knew he had a sister but he barely mentioned her.