Not to be nihilistic, but what you're suffering from are chemicals and hormones telling your brain that you HAVE TO MATE NOW OH MY GOD. It's one of our deepest biological impulses - to further our genetic material - and because our brains are so complicated (and we're self-aware) painful shit like this comes out of it.
Honestly, I know it's cliche, but time heals all wounds. The world may seem like it's crumbling down around you, but if you wait long enough that will subside. Best of luck!