My sex drive is bad when I am depressed or stressed. I think it is quite common for that to happen. Anxiety and stress also decrease it for me. When I am happy, it goes back to normal.

I think when you find someone you want to be close with your sex drive will go up. Provided there isn't something else going on, like hormone levels, illness or past sexual abuse. You'll get the butterflies in your stomach and all the other stuff that goes along with being in love.