Sounds like he's counting his eggs before they are hatched (expecting alimony). I got divorced and my X was not working, (except for working on his drinking, ha, ha). He ask for alimony, but the judge said he was a capable adult who could earn enough for himself. He had a good career prior to drinking it up. Not my responsibility to take care of him. Oh, but his attorney painted a good picture. "He's down and out, unemployed due to his illness of alcoholism, buys all his shoes at Walmart, eats spam from a can, and is unable to work." Yahdah, yahdah... It was pathetic.
You sound strong, blow off his threats. That's all they are! Oh, and being rid of the X is wonderful!!!!!