OP here. My cat is an indoor cat, we rescued her when she was 2 months old and she never left the house in the last 3 years. My dog popped a corner of the screen out of one of my windows and that's how my cat got outside. We went to all of our nearby neighbors asking them to keep an eye out for her, and the particular person who has my cat hates my husband. We thought it was strange he was being so nice and friendly towards us the first day, and now we know why.