I am not sure if she [Akira] really liked Shouma considering how little they interacted and how little she thought of him ...
It does seem that any romantic vibes that may have occurred between the two came mostly from Shouma. In Chapter 25, Shouma 'stiffens up' when he touches hands with Akira, wherein Akira has almost no reaction to that happening, other than telling herself that she is still socially incompetent at this point in her life.
Also, in Chapter 39, the two once again touch and graze each other's hands while passing each other on the stairs. At such an unexpected happening, Akira slips and begins to fall down the stairs, as Shouma does the 'white knight in shining armor' thing to protect her and break her fall, by grabbing her hand, changing positions mid-air, and having her land on top of him. The two hold hands at the bottom of the stairs for quite a while, seemingly unhurt, potentially with romantic vibes from Shouma, yet all Akira does is apologize and speak his name once, nothing more.
I do agree that she might be bi[sexual] though but it's still a long ways from her figuring that out (Will she even figure it out?)
It seems that Akira might have hints of being bisexual. She is certainly attracted to her female friends (Aoi, Natsumi, etc.), plus her rather intimate friendship with Rumi.
Yet, when Akira meets a fellow male student who looks exactly like her 'ideal boyfriend' avatar (Chapter 46), she is briefly interested in him, with other students immediately shipping the two of them together.
Then again, Akira had consented to be together, one-on-one, with Shouma at the Summer Festival. She was comfortable enough to be with him, although to others they certainly looked like a typical boyfriend/girlfriend couple. Akira even had a Love Confession directed to her by Shouma (Chapters 49-50), although if she may have felt anything romantic for Shouma, it was not enough to prevent her from declining.
And finally, Rumi gossips to other female friends that Akira has caught the attention of several boys in class with her abject cuteness, but it is possible, although not definitive, that Akira herself knows or has reacted to those boy's infatuations. (Chapter 61)
Seems that Akira could be bisexual, at least in a social sense, if not in a romantic sense. But we will have to see where the story goes.