Crush?

Samantha • 92F in the U.S. Army

In the Army. Coworker of mine about a month back admitted he had a crush on me and I feel the same. I am not sure whether or not to go for it. I have sucked at relationships for 4 years now nothing lasted longer than three months. He hasn't been a relationship for a while either. He travels, is handsome and just the best to talk to. It feels natural because we are such great friends. What should I do?