Still it proves Maya fears falling behind Josy and MC and fears about what am I sexually. Which goes to my point about Maya's progress with MC. I don't believe Mc going to Josy's changes how Maya feels it just a confessing that hasn't been revealed to MC yet. We seen before the same thing can be revealed later or even revealed by someone else like the story behind Maya tongue piercing and Josy backing out we can learn it from Maya in ep 5 or Josy in ep 10.
The piercing thing is exactly the point. If the MC is with Josy in EP5, he can only find out from Josy in EP10. What matters is what Maya will say to the MC in EP5 when he has gone to her. Namely, so that he would have better gone to Josy and there is a reason for that.
When the MC is with Maya, both of them are caught by Josy after having sex and a decision is made. Wait for Josy next time or not. This question is in contrast to what the three agree to after their sex in EP9.
But if the MC is with Josy in EP5, then Josy told Maya so that they had sex and the MC can text Josy via chat so that they shouldn't keep something like that secret from each other. This applies exactly to what the three of them agree to do after sex in EP9.
Of course, Maya is making progress, and making huge progress when it comes to sex. It's not for nothing that Josy says after sex in EP9 so that she and Maya are on the same page. Of course, only if you play accordingly.
What you think of as a confession from Maya is one, but the important and crucial confession happens during Thanksgiving dinner when Maya apologizes to MC for her mother being a little upset. A decision the MC can then make results in Maya placing her head on the MC's shoulder. This decision is important because it is a spontaneous expression of the well-being, security and love that they feel with MC. Saying that you love someone means nothing if you can't show that love. But that's exactly what Maya is doing at this moment.