Best friend at work thinks I like him?

Get real man - you have a crush on him and you know it. I don't say that to be mean it is just the truth. Why text him if you don't? Why go out with him even if he asks you? Don't give him attitude just act as you always did but just don't text and go out with him. And think about - he bound to have a small crush on you - he asks you out. So just hang in there and act normal. Be courteous to everyone there and they will see thru him.