I'm secretly posting nude videos of my wife on the internet?

I'm 26 my wife is 34 we have been together for 3 yrs now married for 1 and a half yrs. for about a month now I have been posting candid and some nude videos of my wife on the internet. I secretly record videos of my wife from my iphone while she is undressing,getting dressed or when she is just in her panties and bra or in some skimpy clothing that she would just wear around the house only for me to see. I started recording her because since we have been my wife has gained around 35lbs. She weighed around 145 when we married she now weighs 180lbs(she is 5'5 tall). Naturally like I ume most women would she has become a bit insecure about her weight feeling like she isn't y anymore. Everybody around her keeps telling her that she is fat including her 3 kids her brothers and even her own mom as she has been thin her entire life. Now she is african american so you can pretty much imagine that all of the weight is going to her stomach hips thighs and . I have always liked thick and honestly large women so for me I'm loving the weight gain. I always reure her that she is beautiful skinny or thick and i love her so much i'm not going anywhere. So i kinda wanted to gage if other men would think that she is fat or whatever and the response has been over whelming men think she is so y and are sending me messages saying how lucky I am and how they masturbate to the videos of her. This turns me on so much knowing how many other men want what i have. I wasn't expecting nearly the positive response and demand for more videos of my wife. I feel so guilty because i know i'm betraying her by doing this without her knowing but it's like i'm hooked now and love seeing others lusting over what i have. What should I do???