Okay I'm just gonna put this up in here. This is my main thoughts about the ending the author gave us.
The ending of this manga was so sad for me really, in Fumi’s POV. I mean Akira confessed(?) her love Fumi mainly because she can’t take the latter giving attention to other people and how she was just filled with jealousy when it comes to Fumi. The reason why they’ve gone out in the first place was because Fumi said she loved her, and she can’t hurt her precious childhood friend’s feelings (can be quoted), so she returned it. Her idea of love for Fumi did not measure up to Fumi’s love for her. They only “tried” going out. I won't really blame Akira, since it was the first time a person confessed to her, only that she didn't think it would be her crybaby childhood friend. I get that Akira returned her feelings to try and see if she will be comfortable enough to have such a relationship with Fumi, not to mention she's having her first relationship with a fellow girl. I just think it's sad that she went out with Fumi out of pity. Akira was just half assedly protecting something that she just shattered while doing so. It just happens so that Fumi became strong and independent in the end. SHE HAD FAITH. She had faith that Akira will come back go her again. I just want to hug her, she is so sweet! Ehem... The only thing that I loved about the ending is that Fumi is happy. Fumi Manjoume is happy. That is all I care about.
I posted these thoughts on tumblr tbh but that one seemed harsh so I'll post the softer analyzation here.