The only guy she ever fucked was her boyfriend (the stupid looking skinnyfat bald headed tattooed dickward). So probably she broke up with him and didn't feel like continuing porn with randoms, or got a new BF who didn't want her doing porn so she stopped.
It's a shame no-one booked her to do a proper 3way or lesbian scene with Megan Piper. They were in a few scenes together and had good chemistry.