Come on bro, you seem to be a nice guy but the story is shifting slightly.
In the beginning your concern seemed to be how she may be upset if ever it was her in the video. Now it seems more to be that your worried YOU may lose the lady for whatever reason.
Many collegues have strongly suggested you tell her. If ever it is her it is up to her to decide how to react and steps to take.
Step up to the plate and tell her. Chances are she will thank you for your concern and get on with her day in whatever way she deems fit.
Look, I am relatively new at this. Haven't seen an SP since May for my birthday and before that since last March when I went to Montreal. Have only seen approximately 20 providers in like past 3 years and I am very picky and choosey when I decide to see someone. I do.a ton of research. Have only ever repeated with one provider and it was not as good the second time around. I blame myself for not being in better shape. I also generally tend to air on the side of being responsible for my own good time. One time I saw a SP whose pictures were way off but, had one of the best times and she wanted to put me in BBFS but, I said no. When people complain about passion, acts, restrictions, DFK or what not, my attitude is I am hooking up with a really hot girl and yes I am paying for it but, also a benefit is it is drama free compared to being in a relationship. I have had girlfriends that were more passive like a starfish in bed than my worst SP experience and more expensive date than an SP. I am leaning towards telling her and to be honest this is not the first time I have seen a video online of a provider just the first time I have seen a video of a provider I think I may know. That is the thing I am not certain. If I were 100 percent sure, I would have told her immediately. I came across a video of fairly popular agency girl that I had wanted to see and I know 100 percent it is her and it honestly made me not want to book with her anymore. She may or may not even know it is out there but, she knew she was being filmed.
One thing I will say is that the three women in Montreal I saw were all incredible and the last one even jumpstarted my dead car battery on my last day there after our appointment. That is service..