Yes, there is such a thing as being too gay. I do believe that everyone should be just who they are...but being overly gay is not who anyone is.
what is overly gay? you don't know how to carry yourself in varied situations without displaying your 'sexual preference choice'. to me, overly gay is letting the gay 'lifestyle' overtake you and by which you lose yourself to the 'lifestyle' versus adapting the 'lifestyle' to fit who you are.