You might be too envious to see someone's relationship from a distance, maybe I could have been like them.
Likewise, you may think of someone else's position as if I were in his place today, but I would have been very happy.
But, trust me - your jealousy, the idea is absolutely wrong.
Those who are happy, maybe they are not really happy.
If you are in the place, try to make place your own heaven.
But success will come one day ahead and beyond.