I just got a job and there is huge ual tension between my boss and I.........?

I have never been one to mix business and pleasure but I may have to break my own rule........we always go on "company networking events and seminars" and it ends up just being the 2 of us......and I can just sense the tension I have been very professional as has he however, there is some flirting and bantering between the 2 of us and we get along get I am single as is he....what to do any suggestions?