Persuade endlessly

My father-in-law called me at night (26/11/08) to persuade me yet again to reconsider divorce.
As usual we exchage heated views on this matter. He doesn't seems to understand my point, likewise me as well.
The conversation went slightly rough, till he pushed the most sensitive button, and I flared up. He mentioned about how nice they have been treating Dinah. Memory started flashing back, the day Aaron's grandmother insulted me. I argued and scolded that I've no assurance from them.
I don't even know if they will insult Dinah in the future. Will they also insult her like they insult me? I'm feeling uncertain and mad.
I believed he can sense my anger boiling, he tried to calm me down, but to no avail. They just simply don't understand, despite telling them numerous time. If he wants to salvage the marriage, he needs to prove it to me, and not getting the parents to talk to me. That to me is insincere.
I give up talking and my decision will not be altered that easily. If they thought they can persuade me that easily, then my advise is they can also forget about it. I've no intention to repeat my mistakes......