Not about a love 'relationship'
Singer Alice in chains (Layne Stayley), guitarist (Pearl Jam, Mike McCready), singer in 'long gone day' the Mark Lanegan (Screeming Trees, Queens of the Stone Age, though I prefer his solo stuff tbh). The best autobiography on a rock musician there is!!!
https://www.amazon.co.uk/Sing-Backwards-Weep-Mark-Lanegan/dp/1474615481
Mark scored smack for Kurt Cobain, best friends with Layne Staley. Even if you don't like his music, amazing read!!!