AITA for letting a magpie into the house

I was living with my boyfriend and his mum, and for a while things were actually okay. That changed when my boyfriend and I decided we were going to move out. Nothing was said outright, but the atmosphere shifted. Little sly comments started slipping out here and there, and everything suddenly felt a bit off.

Soon after, I was heading out to meet my sister. She came to pick me up but parked outside the wrong house. My boyfriend was at work and his mum was out. I don’t really go around the house much anyway because she has four cats and I’m allergic, so I mostly stay in our room. It’s her house, not mine, and I try to be respectful of that.

I went downstairs and saw it was absolutely pissing down with rain. I rang my sister, she told me where she was parked, and I laughed and said, “Okay, I’ll just run to you and lock up quick.” I dashed out the door, ran halfway down the drive, and as I did, I heard a noise come from the Ring doorbell. I didn’t think anything of it and just kept going. I was outside for no more than ten seconds. The doorbell doesn’t even record properly because they don’t pay for the subscription.

I went out with my sister and completely forgot about the whole thing. Later on, I met up with my boyfriend, and we went home together.

When we walked in, his mum was in the kitchen, and she looked absolutely fuming. I asked her if she was okay, and she snapped back, “No, I’ve got to clean all this up now,” pointing at dirt and soil all over the sink. I asked what had happened, and she said she was going to ask me.

“Me? What for?” I said.

“Because of the magpie,” she replied.

I just stood there, confused. “What magpie? What are you talking about?”

She told me that I had let a magpie into the house and the cats had chased it around. I told her straight that I had no idea what she was talking about and walked away.

The thing is, she regularly leaves the windows wide open for the cats. While she was out, a magpie had come into the house through one of those open windows. But in her head, she’d come home, after looking at the Ring doorbell, seen me running away laughing, and decided I must have been laughing because there was a bird loose in the house.

Later, when I told my boyfriend I was upset about it, he said, “Well, what would you think if you saw someone running away laughing and then came home to that?” He said she was only asking.

But from my point of view, she wasn’t asking. She spoke to me like I already knew exactly what she was talking about, like I’d deliberately disrespected her home. And honestly, if I’d come home to a mess like that, I wouldn’t automatically assume someone else had caused it especially not without any proof.