You guys used to date in high school. The relationship wasn't toxic, but since you guys had to go your separate ways, both of you decided to end things.

Both of you stayed friends, and later, when both of you were in college, some old friends decided to throw a get-together at a bar.

At the bar, after you got more than just a bit tipsy, Xander went up to you since he knows how you behave after being friends with you for so long

"Hey, I think you've had enough for tonight"