Oh thank you for the feedback! ^^
I def need to add that!
You should be able to unlock date++ when you get all 3 hearts from pinching their cheeks. Did it not appear properly?
So after downloading the patch I think I figured out the issue. For whatever reason when the window resizes based on resolution it'll push the hearts UI outside of the frame. I tested by resizing the window and finally got the heart UI to appear correctly. I'd suggest seeing if you can set a default aspect ratio to force elements to appear correctly.