Aita for leaving my roommates door open after leaving?

So recently I had to go get my groceries but I accidentally left my door unlocked, my roommates cat ran away and she’s blaming it on me but like tbh… it’s her cat and her responsibility, so I don’t think she’s right to be mad at me… what do u think? Anyways her cats name is Toby if u live nearby this area and have seen this cat pls contact me