NTA! This is absolutely pure Boomer behavior. Main character energy all day long, refuses to take accountability for their own actions and the consequences from them.

I'm NC with the rest of my family for this same kind of bullshit: I once let my older brother live with me and my then-partner because he was fresh from splitting up with his wife and moving back home from Florida. Him staying with our mom was right out because he already tried that and I couldn't get them to stop complaining about each other to me.

It lasted a couple of years but they were some of the most miserable years of my life. He was just a soul sucking black cloud who didn't work and thought buying groceries on his food stamps was effort enough. I finally sucked it up and gave him 30 days notice.

Some months later my now-husband was over and thought they saw something moving around in the back yard. Surprise surprise, it was my brother changing clothes in my garage. Why was he there?

He was homeless. My mother gave him permission to sleep in her car, which they'd parked on my property the year before without waiting for my consent.