Is there such a thing. I honestly have this really strong urge to pounce on a co-worker every time I see him. I have never seen him outside of work, and I only see him once a week. Otherwise he is on his side of the building and I am on my side. We talk during work for work purposes and he as this great personality. My question is because I feel this urge there is something that he is giving off and maybe an attraction also? I have no idea of his sexuality. It has never come up, but I usually do not have attraction to anyone straight, so I think there must be something there or is there? Can Chemistry be 1 way and if so what are your experiences.