I think you’ve got it backwards. Most likely this is the creature’s ancestral homeland where thousands of generations found a niche with enough food and safety to reproduce to this day.
That means YOU are the alien and invaded by parking your ship (house) here.
Most likely it just wanted to escape, and get back to a place with food and a mate. It doesn’t understand why it’s trapped. Imagine if you were out in the forest and fell though the roof of a cave, then found yourself trapped with an angry bear. Kinda of like that.
The bug didn’t set out to frighten you. So you’re already torturing it by keeping it confined. I would find the nearest nature park or reservation and let it go there.