Let me dumb it down for you.

In life in the world women may call you silly fag for being chaste.
And guys will think you are a lame dork, and make fun of you for being chaste.

But chastity is pleasing to the Lord, in heaven you will be surrounded by cherubs and 72 hundred virgins and stuff better than life in the world.
It is wise not to screw that up, but to love the Lord.