The anon group actually translated this much better tbh. sorry boredom society. Yamada's explanation of why he dumped him was clearer here than in the other scanlation.
speaking of, strange for Yamada to pay attention to other guys besides ichikawa. She knows about his soccer thing which was a surprise. (perhaps because of that fact she knew he liked her so her attention shifted a bit isnt it?)
looks like Nanjou Paisen seems to have grown. at first he was some pickup artist then he became a bit obsessed (scaring his cohorts) then mellowed out and just wanted to get closure (i.e. confess). Good for him he still has a girl waiting for him,
Im not sure what kind of train of thought did Ichikawa do to make him think thats evidence enough that Yamada likes him at this point. In fact he should've realized during the Chocolate Handoffs they did during Valentines by then.