No, it is not healthy and will go nowhere or could turn into an obsession in the worst case scenario. It is better to move on and find someone who is interested
Seconded.
As a pure act, I can’t see that it causes any harm.
However, it will very likely lead to frustration, anger, and poor treatment of the person in question. Those things are bad.
“Should you” as in “is it morally/ethically wrong?” No, it’s not. “Should you” as in “is it a good idea?” No, it’s a terrible idea. And I think you know that on some level.
In what reality would that be a healthy thing to do?
No. I know it hurts, but you need to let go.
No, it will just hurt you in the end.
You’re allowed to THINK whatever the hell you want.
The point is in keeping it to yourself an act civil.
If you can’t help it you can’t help it. But you should try and not do that because its a painful place to be mentally.
No, once you know it’s not going to happen you need to do what you can to let the idea go.
Holding into it is just tying an anchor to your happiness that will only get heavier.
Don’t do that to yourself. You need to move on.