You use me. You feed your vanity

Hello.

Are the following sentences grammatically correct?

"You use me. You feed your vanity with me. You talked to your new friends, the “popular girls” about that guy, your doormat hopelessly in love with you. One time, in History class, I picked up your eraser from the floor about five times… and at the end you were laughing at the situation, because you had been throwing the eraser to the floor on purpose!"

Thanks.