Okay, but hear me out.
Amon and Takizawa both having feelings for Akira.
Akira having feelings for both of them.
Agreeing to share, because they are already pretty much so beyond norms at this point with the whole “two artificial half-ghouls and their girlfriend”.
Amon and Takizawa having unrealized feelings for each other.
Akira’s Intuition ™ picking up on things.
Akira subtly playing match-maker, and encouraging her boys to realize things.
The three of them settling into a happy relationship, being in love with each other.