If she is going in for a confession right after getting him to accept that she is a girl, I can only see next chapter as painful. One of the few times in a manga that I hope the convenient 3rd party/event randomly appearing and stopping said confession cliche happens. It's just too early for this to end without tears.
I think this is the first time I’ve seen a genuine, true love triangle, where person A likes person B, who likes person C, who likes person A. Usually it’s person B and C who likes person A, forming a love <