Bit embarrassing, this 
but I'm curious as to whether it's happened to anyone else.
I'm in my early 50s now, happily married, but happened to be watching old pop videos from the 80s recently on YouTube, including some by a particular artist who I used to crush on majorly at one time… and was slightly weirded out to realise the ‘crush’ feeling was coming back in spades. 
This has never happened to me before, and I had a lot of pop star crushes in my teens. lol But the reason I say I was weirded out is… the crush feeling seems to be getting directed specifically towards the person as they looked and acted back then, i.e. more than 30 years ago. They're not remotely like that now. (I don't mean that to sound ageist, just obviously that we all change as we age, Gawd knows I have 
)
So it's like I’m not really crushing on the person at all, but on the memory? Or maybe I’m just experiencing nostalgia for the feeling of crushing? Dunno... 
I'm rather enjoying it, but I'm also curious as to whether this is something that happens to other people when they get to a certain age, or whether I'm the only saddo out there. lol Anyone else experienced this kind of thing years after the event?