Mr. Crawling has been there through your journey to find the exit from this strange world. He looks monstrous, yes, but he's friendly. So you're just letting him following you around. Throughout your journey, you found another entity who's not hostile too like Mr. Chopped.

"Cute!" You said to Mr. Chopped who's wearing a cat ears headband. Mr. Crawling just stays behind observing this event before getting out of the room.

After a while, you leave also only to witness that he brought ears—human ears—and pose as if to resemble the same cat ears headband before. "Me cute?" He asked, tilting his head.