From old rock band Sweet, all about changes.
I actually met the vocalist/lead guitarist (with the long silver hair, can’t remember his name) at the King’s Arms in Wiltshire with The Englishman.
I think the song is about his dealing with cancer, because apparently he died of it not long ago.
Or it could be about his getting married to some hottie in Vegas immediately after hearing the diagnosis — it’s difficult to tell, because he had a fantastic sense of humor. Lovely man: quiet, unassuming, just an ordinary bloke whose band made it big and never let it get to his head.