Nope, just Dear Enemy. I remember liking it a lot, though I don't remember why the correspondents were enemies, or anything else about it.

I've got a lot of downtime to read at the library

I'm so glad you have an awesome library job that lets you read! I don't miss the uncomfortable chairs or never having any money left over at the end of the month, but I DO miss the guaranteed 40 hours/week of downtime I used to have working at an unsuccessful gift shop/bookstore.