Q&A Is Our Sex Drive Physical or Emotional?

We are 4 months after D-day of my admitting to viewing pornography. We have been sleeping in separate bedrooms and have had no physical contact since then. My question is: What is our sex drive? Is it physical or emotional? I grew up around cattle. I know what a bull does when you put him on the other side of the fence from the cows. He paces back and forth, paws the ground, growls like a bear and gets very ornery. He doesn't just want to have an emotional connection with the cows. I have always believed that being "horny" was a physical need. If I am without sex I am in physical discomfort. You state that physical pain and emotional pain emit from the same place in the brain. So, does that mean that when I have a physical need for sex that it is really a emotional need manifesting itself as a physical need? Can you have one without the other?