I feel ugly...My fiancé and porn...Please help ladies!

My fiancé had porn up on his phone. Normally I am fine with him watching porn. But he was watching a thick Latino woman twerking and dancing naked and showing her "pink parts". She had a big butt and big boobs (the boobs were implants). I felt ugly because that woman looks absolutely nothing like me....it doesn't help that I've been trying to gain weight and achieve that look, but I simply can't on account of my stupid metabolism. :,( For a few days I have been pretty confident in the mirror; been trying to see if I have been gaining weight at all. Then I saw her and I felt like a cereal box among coke bottles. I felt worthless. :,(