Karin, it sounds like things are headed in the right direction. If those tapes were anything that could _really_ hurt you, they’d be a lot more specific. Somebody with a dubious background is NOT a credible witness and any even moderately capable attorney would crumble him up like tissue paper. Scumspouse and fiend are grasping at straws.
Okay, now I’m gonna go all worst case scenario again.
The idea of moving out all in one swoop with friends helping is really good. However, if there’s anything that he’d dispute ownership of, like a joint purchase, I’d leave it behind. You don’t want to give him an excuse to harass you or file a nuisance lawsuit or anything like that.
You might consider documenting anything that would demonstrate that it was not a green card marriage. Did you send emails to anybody talking about what you saw in him? Or have enough conversations with friends that you could bring in witness after witness after witness? Do you have anything that would show that you got him presents while you were first seeing each other? Aside from what you said during that argument, is there anything he has that could back up his case? Did he or anybody else at any point make you a gift of cash or other assets? If not, then it would be well-nigh impossible for him to back his story up.
The ICE is 99.9% concerned with large-scale money-making rings where they can easily prove that cash or assets traded hands. They don’t really care about individual cases where somebody more or less did another person a favor. Even if he is able to put together a plausible case, who is the ICE going to go after–somebody who runs a ring where it’s easy to prove that they’re fake marriages, or an individual like you?
That said, as Anncetera said, it’s probably better if he thinks you’re more scared than you are. Don’t back down but don’t let him think that he has nothing to lose by hurting you or your cats. People are most likely to turn violent when they think they’re invulnerable or when they think they have nothing to lose. You might even point out that he might be able to get a green card from his employer, so he doesn’t see you as the only way to keep his. If you feel that it’s appropriate, add that if he does anything to you or your cats, his employer would be a LOT less willing to apply for him.
You might ask friends who might not be able to take you in if they could take your cats for a few days in an emergency. Ask people who don’t own pets as well as those who do. For example, somebody like me who’s dreadfully allergic and could never own a cat might be able to keep one for a few days in the bathroom, while somebody who has pets already would be worried about supervising them. If you can’t find a friend who could, ask a vet or a battered women’s shelter or local adoption agencies if they know of any emergency boarding for your cats. People who foster cats, for example, might be willing. Or a women’s shelter that allows pets might take them, even if they don’t have a bed for you, especially if there are other pet owners there.