my fault?

so i'm thinking my secret today is that i'm sad. i look nice today took my time and got ready i come to school smile and laugh joke with my friends but inside i want to cry:/ for some reason i don't know why i feel like this.
but then my lover came to school and made me happy :D i'm glad he's in my life
I just feel bad what i have put him through and what consequences we may have to face.
he says i'm not but could his anger be my fault?