While I am glad that the childhood friend girl isn't a rival, I honestly still don't like her. The way she rather callously rejected the MC, and then so easily brought up something that clearly still bothers him to this day shows a distinct lack of empathy on her part for how being rejected like that would affect him. If she had at least been softer in her rejection, rather than essentially laughing away his confession, it wouldn't have done nearly as much damage and they might have still stayed in contact as friends. She's got a lot to do to make up for the, imo.