The fact that he's already considering divorce means he doesn't know what marriage is. Sure, it's real it could happen, but it doesn't sound like she's the right one, or like he's ready for marriage, if he's not willing to tell her all his secrets! And thus, he's considering lying to her, because wi...

That he has engaged her but hasn't already told about all his financial secrets means he doesn't trust her, since part of trust is speaking truth. In a relationship as intimate as engagement and marriage, if he hasn't told her about all his financial secrets, since your relationship is only sick as ...

If he has to wonder, he's not ready to marry her. Maybe she's not the one, or he's not who he needs to be. But trust is lacking. I get that divorce is a real threat in our world. But if his goal is to get through to the end of a divorce with his 10 BTC still a secret, that's a pretty sickening start...

Marry the one you want to leave your BTC to when you die. Teach him or her to stack sats better than you do - be a team. Think generational wealth, not divorce survival.

At first: do NOT marry. Therefore the question is obsolete