i think you already know the answer is, he did have interest in you, but since he is married we both could only can think what would be his interested, now that you know the answer, what will you do? because when someone begin to ask a question , i know it is just based on curiosity, but curiosity can only be there if you have the reason of your curiosity... now this is what you should ask to your self, "i know he like me, what will i do about it ? "