For now, you can only see the heart bar. I'll add the affection bar in the next update.
I can't find the hearth bar, just the number near it. But i don't understand if im making progression and i don't understand if for example there is more content for a girl or not. Becouse i could chat with celeste for day but maybe there is no content and i can't progress. So i don't know if i'm wasting time or not xD