See I disagree with this, I think it's better as-is. Having your closest friend/crush that vanished for several years pop back up would certainly be pretty overwhelming, especially including the surprise engagement and the fact that her grandfather and aunt were listening to that conversation. It completely makes sense why the confession conversation was later and in private. Could it have been earlier in the week? Possibly, but for purposes of this story I don't really think it matter muchThe confession about the crush should have been at the beginning and not at the end of the chapter.
I also disagree with characterizing Cerys as a lesbian as she's very clearly bi, otherwise most of her interaction with the MC makes no sense. That said while she is my favorite of the cast so far, preferences are preferences so hopefully someone else clicks with you in later chapters.