In a bad situation

I live in Ohio. My ex-boyfriend and I have one child and one on the way. I found out he had a GSI conviction and broke things off. Since then he calls at all hours, even at my mothers when I tried to get a break. He makes threats, but until today never in writing, and it was nothing like before. I have told him over and over that it is over but I will let him visit the kids, here with someone. Today he he sent an email saying that if he can't have the kids then he will make sure I don't either (said it was a promise, not a threat.) I have tried being nice and civil but no matter what I do he is angered. What can I legally do? Is there a way to make him stop? OR is there a way to at least have a mediator so I don't have to deal with this anymore? The pregnancy is haveing complications and the doctors have ordered over and over to reduce my stress, he knows this. And as much as he says it is because of the kids, when he has visited (only once) he didn't even pay atention to them just told me I was unreasonable for refuseing to get back together. Most of the time when he calls he is angry because I wo't call him and hollars about how unreasonable and a nt so nice word I am being and sometimes he actually asks how the kids are before or after. I don't call him unless something is wrong with the kids, but I have told him over and over he can visit but he doesn't try and makes threats because he says I am keeping him from them. I fear angering him more, but I have no idea what to do. PLease some one , some advice.

[I AM ALWAYS LIABLE]

My response:

Go to court on Monday, and obtain an "Order of Protection" or a "Restraining Order" against him. This you do bright and early. Make sure you bring all written proof with you, and when you fill out the Application, make sure you are EXTREMELY EXPLICIT about what he says and does. NO HOLDS BARRED ON LANGUAGE USED, EITHER. Write all dates that he has done these things to you. Hand everything to the clerk (make copies first), and you'll be told which courtroom to go to. The judge will review your papers, ask you a few questions, and then more than probably sign the order. Then, you'll have someone serve him with the orders, and the new date for the "full blown" hearing. You'll both be in court in a couple of weeks.

Good luck to you.

IAAL