I know you're not holding a grudge. But I have also learned that for some odd reason guys are so clueless and almost never see the world the same way as gals do. It may be that he doesn't even know why you're "off".
Possibly you could say something to lead into the subject, leaving room to walk out of it. Like maybe "Does xyz make you happy?" "Why did xyz make you so angry?" Not really demanding an appology, he may feel no appology is necessary, he may not see it from your point of view at all. It needs to be talked about.
Pity me that the heart is slow to learn
What the swift mind beholds at every turn.
Edna St. Vincent Millay
