or after awhile, you'll gain more hearts for talking to one of them you haven't talked to in a while, or gain more hearts from NOT talking to the less talkative characters.
I think It'd be cool if the amount of hearts you get from talking, didn't just vary from girl to girl, but from when and what you're talking about, Like for example, fo Mio, If you talk about gaming or programing, then you'd get more hearts, but if you spoke of something like baking, one of the other girls, or even the PS4, PC, or Xbox argument, you'd receive less.
 "Crush Crush"){kind=icon}
 "Blush Blush"){kind=icon}
 "Idle Harvest"){kind=icon}