The bass part in the coda of "I Want Her She Wants Me" has only four pitches (G D E G'), something like this:
The vocal melody in "Care of Cell 44" is beyond my notational ability, but every other line of the verses is something like D D E D E D G' E D E G A B C (sometimes with the initial D omitted). The first eleven notes (corresponding to the words "It's gonna be good to have you back again" in one line) match the pitches in the bass part in the coda of "I Want Her She Wants Me."