B I'm sure your solicitor will advise you against lying to the court. There are many ways you could be found out, and they take a dim view of lying under oath (or statutory declaration). There may be tax implications too, and the tax dept. is very linked in electronically now to online information.
Divorce is expensive for both parties, and I'm not just talking about legal fees. He's finally discovering that he won't end up with all the assets he had previously, which should be obvious, but he's a drinker. Not good for his brain function. Just because he wants things to go one way, doesn't mean you have to go along with it, unless you agree with it.
Be mentally and emotionally prepared for him to get nasty. It will cause you a feeling of panic, but breathe through it, and keep calm. It will pass.
You turned off your phone! You are doing so well!