Since this happens every day, I don't make too much of it. Just go on with your life and look for more people you can never have.
not a single thing, dont do anything. If I want something I cant have, i simply forget about it and move on...
There are a million things and people you can have. There are a million things and people you can't have. If it's a thing - fuck you. If it's a person - no one owns anyone (unless you got a time machine and go buy a negor) - definition: in love = in love, lovers = two people (sometime it can be a cow too).
The only things I want that I don't get enough of are my space and sleep. After I go without either for long enough I say fuck everything else and hit the road or wander off into the woods.