From my memory, and SPOILER:
1- The questioning with your parents, if you have a good relation with her (basically her best friend and something more maybe in the future, who knows) she will try everything to defend you and protect you. If you have low or even medium she will sell you out to your parents making you very very suspicious.
2- This route i did not follow it but if you broke up with Chloe and have a bad relation with her and you dont trust Sylvia, you will ask Marilyn to help you, if it is high she will help you, if its medium she will help but only until a certain moment and giving you a brief info, if she hates you, she will agree and will left you alone in the middle of the work or refuse directly.
The other i forgot because after finding the underwhelming ending of the love route in this update, i saved and quit the game directly being a little bit salty but i remember that is other route (i think Chloe doing NTR, that route for me dont exist, it is stupid), sorry X).