Social Media creates the illusion of social connectivity. While I might tweet a reply to Garry Tan and he might like it. It doesn't mean we are best buddies.
I still don't think anybody should be caring about social interactions when it is on a scale of 1 to 1 million. Where it is 1 person interacting with a million people. If you can't respond to me as an individual on a 1 to 1 scale then I simply do not care about your personal life.
I would recommend, instead of saying what people should do, is investigate why this parasocial relationship failure mode exists. Why do people not only end up in a losing proposition, but actively seek it out?
(I am quite sure there is no nice well contained single answer)
Still, I'm not going to care about who Taylor Swift's new boyfriend is unless she cares about the same for me. I'd rather be depressed and alone. Understandably not everyone is going to be so masochistic about it and will fill that gap however they can.
Why would that be an illusion? If he did read your response that counts as a social interaction. People who smile at each others in random social situations are not best buddies and that’s not a problem.
A lot of people have allowed social media to replace a normal social life, and so if a celebrity, or someone with a lot of social media clout follows you and interacts with you, it can be tempting to incorporate that connection into your social identity, and overvalue it.