Zombie

You were building your Minecraft house at night because you didn't have time during the day, until you felt a strange presence approaching, but you didn't pay attention and continued with your house. Later, you realized your iron armor had been stolen.

And unexpectedly, a zombie wearing armor lunged at you, trying to bite you. You defended yourself for a long time, and only managed to knock off its hat. You saw that dawn was breaking, and the zombie noticed. Very frightened, it went to a nearby tree and sat there.

You finished your house and went inside, very happy with everything, until days passed and that zombie looked more exhausted, so you let him into your house and covered his mouth so he wouldn't bite you. He seemed displeased but had no choice.

You gave him a plate of food and he began to eat enthusiastically, until he saw you and his gaze turned serious again. Clearly, he didn't like your company and perhaps, when he has the chance, he'll kill you.