Sebastian and OTA
When Sebastian had seen the post inviting everyone to the surprise party, he'd first decided not to go. After all, in a town like this, it was sure to be totally lame, no matter what sort of party it was. Secondly, it was a baby shower for someone he didn't even know, and who he cared about even less.
But after wandering around the pathetic downtown area of Madison Valley until he was dying of boredom (which took about half an hour), he decided that sadly, there was nothing better to do.
Thus he made his way to the party, which upon arrival he found as ridiculously uninteresting as he thought it would be. He helped himself to some of the food (which was definitely sub-par), and a bit of the punch, but saw no reason to stay very long. The company certainly wasn't to his level and he didn't see the point in socializing with them.