The reason I left my EX!!!!!!

I have met procratinator's in my time, but no one as bad as my 2nd ex. The worst of it came after we were legally divorced about a year and a half ago. I received a bill for about $24,000 from the IRS from the last year we filed together. Apparently, he said it's an issue with the mutual funds and him moving the money around. It was never reflected he put the money back. He stated that Fidelity didn't submit the correct info to the IRS. Well he said he would handle it and then 4 months later another bill arrived for about $26,000 four months later $28,000 and then just two months ago for over $30,000 and they were going to start taking money from us both.......when I spoke to the IRS, I was told he had never made contact with them. I was livid, I called his parents and left them a voice message letting them know of the problem. Because they are the only ones who can get his butt moving on important issues. I then filed an 'Innocent Spouse' form and said to wait 30-45 days, I then receiving info from the IRS stating it would be another 90 days because they had to verify the information with my ex. Now tell me, if he ignored them before, it stands to reason he will ignore their attempt to get help with my issue. So when I file my taxes, I will lose any money owed and when the $600 is issued in May I won't see that either. Our married life was like that too, I was always nagging him to do important things. I nicknamed him the Absent Minded Computer Geek......I thought that was history, I wouldn't have to deal with his laziness anymore.