Josy solo arc already started in episode 4, when you put JM in the friendzone/ the two girls rejected you. It is actually very well written conflict.If you focus on Josy and spend as much time as you can during free roams you can see that their relationship is slowly reaching breaking point. By end of season 3 JM are no more, thats my prediction.
But u will have a choice to either break them up, or try to save their relationship.
Solo Maya is coming too, but I think you need to date JM then break up in ep9 for this to work. On this path Josy will be cold - because u did break her heart.Maya on the other hand, well now she got a taste of men, and if her father discovers that she is dating a guy, he might go easy on her, and will think that Josy was just a phase, and she likes dick.
I do think however that throuple will fall apart by end of season 3, and if you kept things balanced DPC will hit u with a choice: Date Josy or Maya. Is it cruel ? Probably, but thats what happens when u fuck around and think that u can date 2 girls at the same time. These types of relationship rarely work, almost never.
In the end its either soloJosy, soloMaya, or J&M without u.