Being fat means being inundated with the idea that if you’re funny enough or interesting enough or if you perform in bed well enough then some generous saint of a person will be able to look past your body and find the courage to like you. No, no one will like you because of your body. Someone will always like you in spite of your body. And you’re asking too much for people to thoroughly enjoy all of you.
Painful, but so accurate.
It has taken me a long time to unlearn this kind of thinking, and my mileage varies. Some days I’m better at believing in my own beauty than others.