I don’t fancy him but like him a lot as a colleague and possibly as friends.
We are both freelancers and not part of a company as such.
I value his professional opinions and will often go to him for advice.
But I don’t want to date him.
I’m worried that I’m going to lose the business relationship with him because I have turned him down. As I say, there is no obligation to work together once this particular project is over.