From Lifehack:Thinking that having a significant other will complete you. If you are not a whole person already, then having a romantic partner will  not make you whole. Plus, it puts a lot of pressure on the other  person to make you happy. You need to be happy with yourself with or  without someone. Having a significant other doesnt make you happier.  Only you can make yourself happy.Also, on many other self help sites I have noticed similar statements.I don't understand this. For example, because you are a human, you probably want to have a man or woman in your life who would love you both mentally and physically, so how exactly are you going to make yourself happy if you don't have that significant other or can't get one?Does that quote mean that you need to forget/suppress your human needs? 
What exactly is meant when it is said that only you can make yourself happy?
social psychology;motivation;personality;well being