The first question assumes one can't be happy unless he is having sex...which portrays man as bipolar being...that is happy when he has sex and unhappy when he is not.
the whole thread assumes only happiness can be achieved through sex and physical intimacy
It also portrays the author as obsessed with physical intimacy for the purpose of self happiness.
Heaven?
The Joy of the Lord will be our happiness
And we won't be the same kinds of physical creatures driven by the need to reproduce and addicted to chemicals that tie us to physical intimacy.
The bible says our bodies will be changed and Jesus hinted at what we will be like in the afterlife
Mat 22:28 Therefore in the resurrection, whose wife shall she be, of the seven? For they all had her.
Mat 22:29 Jesus answered and said to them, You err, not knowing the Scriptures nor the power of God.
Mat 22:30 For in the resurrection they neither marry nor are given in marriage, but are as the angels of God in Heaven.
Mar 12:24 And answering Jesus said to them, Do you not err because of this, not knowing Scriptures, nor the power of God?
Mar 12:25 For when they shall rise from the dead, they neither marry nor are given in marriage, but they are as the angels in Heaven.