How about you? are you being too open in the relationship you are keeping that is not yet marriage, you could be doing yourself some harm by exposing to the person who you are in a relationship with where you have invested which is in bitcoins, and even giving them too much information about how you have kept your seed phrase safe. The sweet relationship can go sour in a moment and that your lover can become your enemy. Unless you are married, do not share all information about you with the person you are in a relationship with.
Yes, I have already shared informations about my Bitcoin holdings and investments with someone I've been in a relationship in the past, although I didn't share login informations, neither taught how to deal with Bitcoin. I agree it's a risky move to do so, but when you want to make things work for real you end commiting some mistakes, like trusting the other person from the bottom of your heart, keeping no secrets between both of you.
Reality is harsh, though, and things don't happen as we firstly expect. Even if you are married to someone, I don't think it's a good idea to share private informations from your investments, because a paper signed (marriage) doesn't mean anything after all. It's not a guarantee of happily ever after, anyway. A betrayal may come from a girlfriend, fiancé and even a wife, so make sure you only talk about your personal invstments to totally trustful people.