Thanks for the chapter!
That doctor is an idiot. Granted she did enter and clean without permission earning a couple days in jail, but just hubris to assume she's incompetent just because of being a slave. Chloe told him had worked in a medical lab before and should've examined how and what she did to make an accurate judgement on how well or badly she did rather than blindly assume she screwed up. Especially since did a great job cleaning the room and knowing that the doctors and nurses who are suppose to keep it clean rarely bother doing so.
As for Graham, seems had a lot of disappointments and emotional trauma due to a bad parent as well. Doesn't excuse him for some of the things he's done as Chloe managed to endure and still maintain a positive attitude despite being a slave for twenty years, and an abused princess of the scum Gilbert for two years. Seems to be a lot of foreshadowing of them linking up and her reminding him he's human and has a heart as well.