It's amazing of you to keep your promises, and it was best for you to have a wife who believes in bitcoin as well. However, I think some wives would prefer a surprise gift—say, a car—that they can immediately put to use rather than holding onto bitcoin for such a long time. You did a great thing by giving her gold as she requested because you can't just give her bitcoin to hold for a long time some wives may be feeling something or sell it without you knowing because they don't prefer it. As for me, it wasn't a bad thing to gift a wife bitcoin as a surprise, but I would rather do something else, get her something physically not all our women will like holding bitcoin if even they have heard the name before.
It seems really ideal to gift a wife bitcoin, but in this case, if it were me, I would use the money to get her into a business because it is the greatest thing i can do. We all did what was best for us, and you did the best for your marriage. I didn't think you would actually be able to fulfill your promise when I first saw your post a few months ago about giving your wife half of your investment, but you went on to do the right on it.