Jesus Christ, if you think he gave you a disease, you might want to be dealing with that (and your doctor) before concerning yourself with a video.
And even if you don't mean a disease by "something", it would behoove you to be going to a doctor as you sound as if you were too impaired to consent to sex.
As for a video, etc., do you know this guy's full name? Who he hangs out with? This is not a job for the Internet, not really.
This is a job for getting off your duff and confronting someone head-on, with the fact that, at best, they're a possible rapist.