[Sebastian hates being vulnerable. He hates people pointing out they perceive him as being just that even more. That's why Chloe's words kick his stubbornness up five more notches - the room persists in shifting in and out of focus, but he knows the layout of said room already and where the food items he wants are--
So, letting go of the counter, it's just a matter of stubborning his legs not to give out. Sebastian picks up six cans which he places, firmly, on the counter before Chloe-]
These should last you and one more person for the day, then,
[-before he turns his back to her and rounds the counter again, towards where the rest of the canned food is waiting to be re-frozen.