The Sorrowful Suitor

The Sorrowful Suitor is an unmarked quest in the Fallout 3 add-on Broken Steel.

A fatal attraction
In the Presidential metro, right before taking the train to Adams Air Force Base, go up the nearby stairs and you can find a holodisk entitled Sorry, my darling next to a skeleton on a bench. The disk contains the apology of an unnamed woman to her "darling" for not being able to make it to their meeting point in La Maison Beauregard after all he had to go through to get the "special gift" for her.

Finding lost love
Arriving at La Maison Beauregard through Georgetown east, you are confronted by a hostile character called Lag-Bolt. Aside from his unique armor and shades, he also carries the key to a suitcase nearby in which you find the "special gift", the all-nighter nightwear.