The HeartThrobs, "I Wonder Why." (Another favorite line from this song: "Even hate must surrender to the lust...")
For more info and links to YouTube HeartThrob videos.
I tried in vain to find the lyrics online to one of my favorite HeartThrobs songs, the plaintive and painful "So Far," which begins:
Unlock the door
let me in
I've been away
don't know where I've been...
There's a later reference in the song to driving around in a Jaguar (pronounced in this song the British way, jag-yoo-ar)... It's odd and painful being so completely tuned in to the person I love's obsession with another lover... But this is Sandra's song for Jim.