We've been good buddies for a while and we started working together a few months ago. At first, it was the perfect working environment but then he started doing and saying little things to let me know in an ambiguous way that he has feelings for me. I ignored them and joked them off but now I'm uncomfortable each time I see him. If I confront him I know he'd deny it for fear of ruining our relationship and ruining his relationship with his wife!. What should I do?