what is this curse of always needing to look for happiness in some place r people other than where we now are?

Answer 1

People that have that view see their glasses as half empty. If they could take careful inventory of what they have, they might come to the conclusion that they need an attitude change. Many people searching for the most happiness have put themselves into deep depression by leaving their mates and finding others only to find out that these others have baggage of their own.

Answer 2

Because the grass always seems greener on the other side.