Bruh so she literally spelled it out and admitted what her relationship was really about - manipulation and keeping Yuusuke just to fulfill her own insecurities - and then she goes and says that actually she liked him all that time... Bruh!! You're walking back on what you have just said. It's not like, it's not love, it's not anything but using someone selfishly.
Dai is a good friend... He was really soft on her. (And also weird how he says the timing was wrong for those two. It was not the timing. It was them that was wrong for each other).
I guess all what's left now is for her to confront herself (finally) and let Yuusuke be at last