Soooo incredibly insecure

So I’m with this guy and his exes are all REALLY pretty. And all smaller than me. They got long curly hair. And my shrinkage is CRAZY (my hair only reaches the bottom of my neck when it’s straight anyway) but it curls up into a fro. Anywayyyy I find myself kind of hating the way I look? And not even just my weight I feel ugly...like super ugly compared to his exes. How do you let go of that insecurity? He always talks about how looks really aren’t that important but still calls me cute and adorable and beautiful but my mind keeps FUCKING with me. Help😭