They didn't know she was 19 until they got home at 3-4am?
Bullshit.
They were getting her into clubs, paying for her drinks. I doubt she had a fake ID, I'm assuming they were playing the Kareem Hunt card at the door. But either way at that point they would have known her age I'm sure.
They came back to the hotel room. She probably didn't want to ****, so they kicked her ass out and she was probably drunk and got upset. That's usually how it goes at 3-4am in those kinds of situations. If you can't seal the deal then get rid of her.
Hope Hunt is cleared from all of this. Chiefs/Mahomes can't afford to lose Hunt, even if Ware returns to full health.