So confused...what is this guy thinking!!?

We've know each other for like three years and through out these years, he has always been doing flirt-talking to me in front of all my frds and his frds. But strangely, when it is only me and him alone, he never talks in such way, our 1-1 conversation sounds nothing more than just normal frds. He asked me out for dining for several times and i found that he actually told our frds that we two go dining together. 

Well we do text each other on Facebook but not reli chit-chatting. I dunno whether he is trying to ignore me sometimes....like when I sent a birthday greeting to him, he didn't reply it until ONE month later! I am even more upset when he asked me YESTERDAY if the chocolate he gave me tasted good. But in fact....when he gave me the chocolate, it was last DECEMBER. Too many examples like this to mention. When I asked him to explain thèse unbelieveable delays, he gave me answers like his Facebook account malfunctioning! (i wonder how he sees me? An idiot or what...) At the same time, he made several apologies over Facebook and email regarding the delayed replies and the slip of tongue about our dining.

He begged me to forgive him all these and he emphasized that he really cherish our friendship n want me to be one of his gd gd frd.

So at this point, I  am actually suspecting that....perhaps he has just been taking me as a normal frd  and he just tries to show off himself by means of me! (well if so, this man is really irresponsible n totally doing unethically.)

I am so confused now......WHAT IS ON HIS MIND!!??