You have 3 empty boxes in the cabinet but you're NOT a hoarder???

The first week after I moved in with my fiance we had Malt-O-Meal for breakfast all week.  We even had it for lunch.  The man can make some bomb ass Malt-O-Meal.  After a week the box was gone.  I didn't think to buy more because we had 3 more boxes in the cabinet and that's just over-kill. When I asked him to make some more he said "we don't have anymore".  I know I'm not crazy "uh yes we do it's 3 boxes up there"!  "No those boxes are empty".  "You're a HOARDER!!!  Tell me what the f*ck are you gon' do with them empty *ss boxes?  Do you have plans for them?  Is it some coupons on the boxes?  That's hoarder sh*t."  

He immediately threw the boxes in the trash but never told me why he kept them in the first place.  Do all men do sh*t like this?