This is not an ending, they (the mangaka, editor, whoever) just decided to stop making new chapters. I can't see this as a completed work, there was way too much buildup toward arcs that just died on the vine. Really puts a hard ceiling on how well I'm able to see this manga from a quality perspective, which is too bad, because the actual relationship moments between the two were really good.
Back to BokuYaba I guess, peak stays peak