Great write-up on the 4 of diamonds. I love that we’ve got guides on Cartomancy lately.
If you pull the 4 of diamonds with the Six of Diamonds, it can point to things like driver’s license renewals or transportation-related paperwork. And with the Eight of Clubs, it tends to mean professional licensing specifically.
The combo stuff gets really specific, actually. 4 of diamonds with 9 of diamonds = increase in savings. If you also pull the 5 of hearts alongside that, it’s traditionally read as living in abundance. But 4 of diamonds with 5 of spades and 7 of spades together is bad news - that combo points to being destitute.
I think the ‘mute on feelings’ aspect you mentioned is undersold in most meanings I see online. In traditional French cartomancy, the card does connect to close relationships and trust, like a friend sharing secrets with you. Combined with hearts (especially ace of hearts like you said) it shifts to passionate sincere love. But on its own, asking ‘how do they feel about me?’, this card just doesn’t have much emotional vocabulary. It speaks in transactions and paperwork lol.