Overall: This nailed the theme on the head. I think you couldve leaned more into it with more interactions.
Something that I liked: I like the low poly models.
Something I'd like to see: It would be cute to like have this build up to the wedding. As in pick the correct stuff then make sure you are on track to making her happy. maybe a meter bar based on choices so then her tolerance was lower and harder based on these decisions. This scene being the final boss.
Something that could improve: collision boxes. UI Art. The pixel art did not match the theme. I believe you were better off just keeping it low poly buttons rather than pixel art buttons. more low poly less pixel art as they seemed quite off and different resolutions.