Just wanted to offer up my support to you today. I know you have to call a lawyer soon and that is not going to be easy to do, but it's just another bump in the road and you can get through this. I know this isn't what you want, believe me, but it's not over yet, ok?
By the way, why did your MIL email you?
Most of us really marry only once. First love endures, even unto our dying day. And we never really divorce.