According to the Mirror, he is using this to launch a porn career. How sad when the most pathetic person in a Trisha sex tape is not Trisha.The guy in the video kinda looks like Chad Johnson (he was in big brother UK together with Trisha); she was always pathetically lusting over him; she started becoming very unstable and angry when she realized that he had no interest in her and was instead sleeping with fellow contestant Sarah (former girls aloud singer).
I guess she has now realised her fantasy: this is her life, chasing the next fantasy
edit: okay I am pretty sure that it is not just a look alike, that's actually him! I wonder what caused him to reach such levels of desperation: this guy is now tainted for life