Akari is clearly wearing a Jirai Kei, hopefully it's not literally a "landmine" as the name suggest but kinda feels like it.. but...
It's true that Akari is pressuring Ren, but only because she can't live with her parents that are opposing her being in relationship with another woman, it must be agonizing and frustrating to live yet another day under same roof.
Then again she does try to move on, will try doing her best in Tokyo and doesn't seem like going to abuse Ren hospitality, probably gonna be more confident after leaving the household that drags her down.
It was inevitable the trio eventually going to split up, Kasane also is in relationship and probably will move out soon, tho' it looks like the short stick will have Nade since now on gonna cover soon 100% of living expenses not 1/3...