I really am sorry to hear this. I cannot post anything better than what Always has already said. She totally has it right: this woman will take him as he is right now...which is NOT good enough for you. You deserve better. You will have better...eventually.
Right now, today, just get through it. There is nothing that heals better than time passing. That is what has helped me.
I hope you did something nice for yourself after school today. We are all here for you.
love, Hope
Most of us really marry only once. First love endures, even unto our dying day. And we never really divorce.