Take emotions out of it.

Tell the lawyer sequence of events.

In October his mom died. For the duration of your marriage he told you she is destitute. He told you nothing of any money after her death but he soon after started offering you money in exchange for dating. He supposedly had no money

In December you filed for divorce.

In January you lost your job. He harassed you about dating him so much showing up unannounced amd offering money if you date him and you were upset that you lost your job so were in a fog the whole time. You didn’t see financial statement.

He continued offering you money in exchange for romance and intimacy. Again he supposedly had no money

In March mediator-his lawyer friend- advised you not to disclose to the judge that you lost your job and struggle to pay your bills. You asked him and he advised not to

Your spouse disclosed to you (while pleading for you to come back to him) that he has a lot of money and he wants you to come back to him and he showed you how much he had. When questioned about why and how he had all this money all of a sudden, he became ballistic and aggressive. Later on he offered you 10k

Maybe you aren’t entitled due to short marriage but at the very least this dishonesty has to come forward and I believe judge needs to know

Also if it’s not actual inheritance but life insurance. Beneficiaries know about it. Of course they do. It’s not a secret. He didn’t want you to know