This is pretty scary...

I was looking at one of my past posts and saw that the guy which i casually remarked 'cute' in my entry commented in it. almost faint... how on earth he know ah? i mean though my blog is open to the cyberworld but that doesn't mean so heng can be spotted by the person i mentioned right? was wondering whether it is because their website link is there and they manage to track it? can't be from a google or yahoo search right? any IT expert can advise?

Thanks.