I think giants that are super sweet and shy normally and can do no wrong that get super protective over their tiny friend.
Like imagine the giant losing their tiny, panicking and trying to find them. They find out their friend is trapped outside, cornered by a stray cat who looks ready for a meal.
SUDDENLY, big friend comes from nowhere to spook the cat off, scooping the tiny into their hands. They yell curses at the cat as it scampers away.
Their tiny friend starts crying from having feared for their own life. The giant holds their friend close, nuzzling their tiny body with their face for comfort. The tiny swears they hear the giant say “I’ll always protect you” but they flush, deciding not to let their friend know they were heard.