Rotations are surprisingly short.

The rotations in your internship will likely be much shorter than you expect. Tomorrow is the last day of my current rotation, and I'm surprisingly sad that it's ending. It was a rotation that I wasn't initially completely happy with, but now that I've built relationships with the people I've been working with and the members of the community, I'm sad to go. The people you work with can make all the difference in the world, and when you abruptly reach the end of a rotation, it can be sad.