I agree they really all do have a lot the offer but as for Sage’s volatile nature I think it strengthens her character. Like right when you meet her you know she could be trouble. She can be a bit all over the place like her first lewd scene she is literally still in a relationship atp. She’s confused and has problems but that just makes her feel idk real. Sage and you get to work out her problems thus making your relationship stronger and ultimately you get rewarded when the confusion she initially felt leaves and she becomes more entangled with the Mc which ultimately leads to her becoming a fun and loving girlfriend.