My friend is into tarantulas and has a couple of them at his house. I don't like spiders at all, they creep me out tremendously.

He invited me and another friend to his house to play PS4. He showed the tarantulas as usual, always inside their enclosures. He knows I hate having them close by, but if they're secured inside their little enclosure I'm okay with it. I know he has pranked people before so I made it very clear to never to that to me as I'd very likely just kill it out of fear.

We're playing PS4 and he goes get something for us to eat. Meanwhile I'm just looking at his books. He gets there with a plate with a cover on it, the kind that goes in the microwave so food doesn't splatter everywhere. Our other friend takes the cover and does a huge jump scare, hitting the plate and making the fucking tarantula fly in my direction. I had a book in my hand and out of reflex I threw the book at it killing it right there.

So now he's all pissed at me for being a "pussy" and killing an harmless animal. Other people are also blaming me for it and I even got an angry WhatsApp message from a guy that also has tarantulas at home.

Am I the asshole?