"Come Back" is J. Geils at their danciest (not totally sure that this is a word, but let's go with it). The song is clearly influenced by the popularity of Disco, and I suspect that means that lead singer Peter Wolf had a particularly large impact on the songwriting -- though officially virtually every song on the Love Stinks LP was co-written by Wolf and keyboardist Seth Justman.
"Come Back" ended up becoming the highest charting single off the Love Stinks album, reaching #32 (the title cut hit #38, while "Just Can't Wait" peaked at #78). However, the video was not played as much as the insanity that is "Love Stinks," making this a bit of a rare one.
As many readers will know, the J. Geils Band story is a bit sad. The band toiled as an overgrown bar band, gradually becoming a major act, before finally breaking out with 1982's Freeze Frame. Success seemed to ruin the group, as Wolf left in 1983 to embark on a solo career. The remaining member released one album (1984's You're Gettin' Even While I'm Gettin' Odd) before breaking up the following year. However, there have been periodic reunions in recent years.