So she's supposedly left him hanging for two weeks? Like I get she's trying to work out her feelings, but at least tell him to 'hold that thought' or something. This isn't a misunderstanding on his end (of being rejected), this is her being stupidly and unreasonably rude.
Really funny how Asahi's world was falling apart when she felt she missed out on something. Now things really are taking shape, at least regarding her feelings on this. I am really glad that the girlfriend thingy misunderstanding was cleared rather quickly too. This will be kinda tricky for Souta's part though as he has almost completely moved on by now and particularly even trickier as like what his sister told him, he is becoming a lot more relaxed and cooler recently - will probably make him more attractive to some particular girls around him.
I think that this manga has struck a really good balance between being a sports manga and being a romance manga. In the beginning it felt like the sports was just going to be the backdrop for the romance, but they've put time into making the sport side interesting as well which I appreciate