Right now, I hope that there will be more of a backstory to Maya and Michiru's relationship, because it seems to be quite bizarre right now.
Maya seems to mainly have some sort of remaining attachment from before the two broke up that she can't let go of, and is constantly blaming herself for anything that went wrong, or at least ignoring the incident and focussing mainly on her inner feelings surrounding it? She constantly thinks of Michiru as a child and even an animal at one point, which makes me think that she is ignoring Michiru's capacity for doing wrong.
Michiru on the other hand seems to have been thinking of Maya as a constant presence in her life she may always return to without issue, which is why she was upset when being reminded of the fact that Maya could just leave their arrangement if she wanted. But in turn she seems to accidentally punish Maya by just leaving on impulse....
I'd really like to know more about their dynamic from before!