This part really isn't a spoiler. The reason we don't see Maki dealing with the most immediate effects of what happened the previous year is that we don't begin the story until all that's several months in the past (and he's still at a point where he's pretty good at shoving all his negative feelings down where he doesn't experience them). Now that things are building up and he's less and less interested in hiding his true feelings, they're all gonna start coming up in a rush. His current ones first, sure, but older ones won't be far behind. Fortunately for him, the positive ones are the ones that come first and make the other ones, (as heavy and as painful as they are, especially when they all hit him at once), manageable with time, his strong new support system, and a night on the Umippai.