@SlowlyApproachingBear Can't say I am not a bit lost as well. But at the very least, I understand that
1) This is a flashback
2) Aki is not Yae
3) She actually liked Aki, and did not consider her as just as a rebound girl
4) Aki felt like a rebound girl, and was never told otherwise.
5) This is probably how they broke up
What I would absolutely love to know
1) Did Yae knows she was dating Aki back then (and thus, that she swings that way)
2) Does Yae know she swings that way now