I know what you mean about the rabbit hole. I have ended in deeply weird places on the Internet. As a podcast listener, I have the thing where, like now (just watching the Indians lose to the Athletics), I have some spare time, so I'll use it to respond to the podcasts I listen to. I often listen to different podcasts by the same people, and suddenly (and you have been victim of this - sorry) I will tweet or comment to one person all at once. I sometimes hesitate because I can imagine said person thinking "Shit, doesn't this guy have a life?" I worry that I will overwhelm (not the exact word I want but will go with it) someone because I inundate them with comments.
Also, I married someone I knew in high school 28 years after we met. But...BUT we never dated in high school. I had a massive crush on her, but I was just a guy she knew from Grade 10 Drama class to her. And I was single when we got together. And she had already separated from her first husband by then.
Having said that, I agree that nostalgia can be such a trickster. You think one thing is happening when it's actually something else. In some of my university classes, I teach theories of nostalgia.