“She is a little bit fat where as I am in really good shape.”

What are the real reasons why women say “I just don’t feel Chemistry?” (Midtown)

I am a really good looking guy and I went out to a bar with a woman that I met online. We had good conversation and I thought that things went well. We had good conversation and we both enjoy traveling, adventure sports, fitness and going to bars and enjoying good beer. We had good conversation about traveling and other things and all of a sudden she says that “She just does not feel the chemistry.” We both live at home now with our families and we are in our 30’s. She got laid off from her job and I work 2 jobs. Also she is a little bit fat where as I am in really good shape. Also she likes country music and I am not into country music. But what would make her say that? What are the real reason’s why a woman would say I just don’t feel the chemistry?