I really like the idea of the card game, but I feel like every card should have some sort of effect to give more options. Alternatively, being able to hold cards, swap cards, edit your deck or otherwise influence what you're drawing would help a lot. The last location is absolutely pivotal to the result, so the journey there should result in you getting the best possible hand of cards for whatever may be needed. Maybe the cards you don't use are what you get in the last round? Rerolls giving you the same slot feel really bad, I think it should randomize to a different color every time.
Rewards for completed dates are probably the thing that the game is missing the most at the moment. They don't need to be explicit or even pictures, they could even be just text, or cards for your deck, but there should be a little something.
The sound design and artwork are very pleasant and I love the chill vibe of the game!