Why won't she give up his last name?Or is it that she can't give up him?

My husband’s ex wife won't give up his last name. Like she's Tina Turner or something. She even remarried and kept his last name. I want to say women you’re a “Sanchez” get over him, you have been gone for close to 10 years now. Let go .If you still have feelings for him, I understand he's amazing but we have a 3 year old together .Both of your children with him are grown. Please stop trying to do to me what many women did to you during your marriage with him. I' m truly sorry for you. But I didn't get between you and yours back then. I came around long after the hurt should have pasted.