that odd feeling

It's kinda awkward. We're civil to each other. We, in fact, are generally friendly. But it's superficial. I get odd feelings sometimes that the friendliness isn't genuine. That puts me on edge. Yet each time we do meet, it's all hunky-dory. But outside of that, I pick up on something that leaves me unsure, something that I can't put my finger on. So then I have to decide whether it matters or not. When is it a sign to read and heed, and when is it a mere distraction?