@No_tears_only_dreams:
Indeed, that's been bothering me as well. Ultimately, I doubt he'll do anything harmful, but he seems more than just a tad domineering and calculating, which clashes pretty badly with the gentle persona that it seems we're otherwise supposed to believe in.
That is to say—he's hardly the worst "bad boy" that's shown up in a shoujo manga, to be sure, but it kind of ruins the soft atmosphere this series had going. And as such makes me want to slap him, or some-such gesture of admonishment anyway.
Some people just can't seem to help equating possessiveness with affection, though, I guess.