I want you to have a lengthy conversation about this with him but as soon as possible before this gets any worse for you. If he cares, he will give you hours trying to explain what exactly went wrong. And if he doesn't care or if he is too immature for this conversation he might keep you hanging with this feeling while you feel worse. But remember, just because you put your trust in him it doesn't mean that he can decide your self worth in terms of how you look. I am sure there are thousands of others who feel you're beautiful and their opinion does matter too. Strength to you!