I can't help but think that if Josy and Maya break up, Maya will date Sage.
1) Sage is the third person after MC and Josy who knows the whole situation with her father and her relationship with Josy
2) Maya confidently says that she likes Sage, while Josy tries to avoid answering.
3) In ep9 in the movie theater scene, Maya is the first to say she wants to kiss Sage.
4) Sage treats Maya very well, which could probably turn into a romantic relationship.
If Maya breaks up with Josy and the player prefers Josy, Maya will start dating Sage.
If the player breaks up with Sage, she will start dating Maya.
If the player plays well probably Sage can organize a threesome with Maya.