Somebody mentioned a bit of what I’m about to say, before I got the chance to, but all her lives on earth were literal shit. She doesn’t know how to express love she was the first human ever. everyone gave love to her and fought over her. They never asked if she loved them etc. so it’s not common sense to her. She was a beggar whom everyone ignored and disliked. She was married to a drunkard who didn’t love her. She was forced to be the queen, and all the women tried to make her marry their sons for power. She was never truly loved nor did anyone express those emotions to her. So she herself doesn’t understand, so in a way that’s probably why that thing she calls “god” said she might never understand/know I guess.
Since she’s being punished for taking hearts bc of her greed, I’m gonna assume the answer is to give her own heart to someone back aka love them