Letter from Bittercup is a note which can be found in the game files of Fallout 3. It is a cut item that does not appear in-game.
Transcript
love,
when are u comin back 2 bigtown?? i miss u soooo much!!! i have sum presents 4 u and i hope u come back soon 2 get them!!! ill save whutever i find that u can use 2 give 2 u when u come back!!
