It wasn't the end of the world right? It's not like she'd meant anything by it. What was so wrong with a little "Just Friends" kiss? Oh, who was she kidding?
Rainbow Dash was so screwed. She didn't mean for it to happen. Now she would have to deal with the fallout. Of course, she could just avoid everypony until the end of existence. A girl has to keep her options open.

Rated for naughty language.