This takes place in episode 3, the bologna incident, when Sal walked into the bathroom and made an encounter with Travis in a stall. When Sal first walked in, he saw a crumpled up note on the ground. And him being curious, he read it and it seemed like some sort of love letter, but it was cut off at the end with a bunch of scribbles. It had no name on it, and it had no name of the person it was towards on it. Sal thought that it might've been Travis's note. But, he never said anything about it.