Anyway like most people have already said, it depends if your spouse knows that you have crypto. I just don't know how far they can compel you to reveal your addresses/physical wallets and encash your crypto.
I think even if your wife only have a suspicion of you having them, she'll try to find a way to force you to give them up. If you already have crypto before getting married, don't tell her. I think it's possible to keep items in trust that can be given to your heir if you died in case you are worried about your children. Not sure about including this in the will while still married since they could find out about your store.
This thread is funny though, lol! Well I believe that still a good relationship in marriage is what matters rather than having a Fat BTC Wallet. What money can do for me if I don't have even a wife behind me that will comfort me when I am down, still happy marriage is what matters and having a Fat Btc wallet is just a bonus.