If you value fit bodies over personality, it’s ok, it isn’t always shallow. I care more about what is typically thought of as deep, which is personality and kind/passionate men and women, but if you are into fitness yourself, it can be a shared bond between you and your significant other. It is only shallow when you aren’t bonding over anything together.
A person can be shallowly into personality when they won’t date an interesting man or woman due to being good looking even if they are nice people.
I dated a stereotypically good looking girl in HS, two actually, one for like a week, the other for 8 months.
First one wasn’t too good of a mix, but it was my first relationship, the second one was very interesting.