Three years?

So, after a year and a half it has happened. I spent an evening in the company of the ex. I've been feeling like I demonize her and have overly skewed my opnion of her, but nope. I have apparently just been nice. After about three minutes, I completely wanted to leave. I felt like I was back in elementary school and watching that kid that got the new cool toy, she wants everyone to know she has it, but doesn't want to let anyone else share. It is childish, elitist, and just sad. I felt out of place and completely uniterested. I didn't care about the toy and didn't have the energy to pretend.
Overall I felt better off for not having interacted for so long. Sorry for her, because she is the same as always. Angry that my pregame buzz left me and that the drink I ordered didn't take away my mental capacity.