I was stuck at 98% but finally did figured out why: For me I was missing a Booty Call (I never called Pricia because I don't like her) afterwards my progression jumped from 98% to 99% and then Madalyn was finally talking with me and it unlocked Scene 118.
So make sure you called every girl once to your home, since this affects the progression. You can check how many you're missing by just clicking on the Empty Pocket in your Inventory (where the Crystal was before)