Gladio can't help but laugh at seeing Ignis blush, his mate comfortably in his heat enough to worry about someone stealing him away. It would never happen of course, though Gladio's alpha instincts do have him considering opening the door without clothes, the scent of heat and sex marking this as their domain...

He snaps out of it a second later, reaching over to swat Ignis' perky little behind as his mate passes, unable to stay away from him for too long.

"I'm all yours, babe. You've got nothing to worry about." How could he even conceive of worrying his mate at a time like this? It's Ignis' heat, and as Gladio tidies up their bedroom turned den and adds more blankets to the mix he endeavors to take care of him just as much as Ignis does to him.