If I have to think of musical infatuation, I would probably remember the time - over 20 years ago - when I used to listen to a lot of heavy metal and buy a lot of albums as well. Now I've still got the records (vinyl is too valuable to be thrown away carelessly), but I wouldn't dream of listening to most of them, let alone buying them in their CD versions. There are exceptions, of course - Metallica's peerless "Master of Puppets", most of Iron Maiden's earlier production, something from Megadeth, Judas Priest.... - but, to tell the truth, my fascination with metal has waned.
As to endless love.... the list would be quite long: Yes's "The Yes Album", "Fragile" and the immortal CTTE, most of KC's albums up to 1974, ELP's "great six", Genesis' SEBTP, Pink Floyd with Roger Waters, Deep Purple, Led Zeppelin.... I love them now as I loved them the first time I ever heard them.