AITA for giving my brother 4 weeks notice?

My brother has lived with me for 2 years. In those 2 years, he's never had a job andhas never paid anything towards rent or bills.

On the 2nd January,my husband messaged my brother to let him know he had four weeks to leave. My husband was working and didnt want a scene so messaged him. My husband told him it was nothing personal, that it was purely for space as our 16yr old recently moved in from his grandparents.

As it stands right now, we have three bedrooms. Our 18yr old has a room, my brother has a room and my partner & I are sharing a room with our 3yr old. The plan is that when my brother moved out, the three year old has his own room, the 18yr old has a room, my 16yr old has a room & my husband and I buy a sofa bed and sleeping in the living room. So all of this we're doing so our kids can have their own space and rooms.

My brother seemed okay about having to move out. He even told me that he was expecting it and he understood. My husband had also asked if he minded taking out toddler to and from nursery as we both work. We offered to pay him for it as well, so we werent expecting it for free or anything.

That leads to yesterday- I tried to wake my brother up so I could get ready for work and leave. My brother didnt get up, and stayed in bed. I messaged my husband who said i had to try so I could go to work. He refused to get up. He got out of bed just as I was walking out of the door to take my little one to nursery. I talked to him about it and all I got was a snarky sorry... When I got back from nursery, I talked to my brother again and he said well I didn't sleep last night, I didn't sleep til 7. My argument was well, if you were awake, you could have messaged either myself or my husband to let one of us know that you weren't able to have my son. He stormed out the house and slammed my front door.

My brother is 30, I sent him plenty of job openings, I tried to help him get a job. The first year he was here, he by his own admission, treated me like a maid. Stayed in his room, complained if I ever asked him to come out with us. He used to smoke weed, but stopped for a while, and actually helped around the house. Recently, he's been smoking weed again, going so far as to take weed from my teenagers and actually sulking with them when they didnt invite him to go for a spliff with them.

He's now saying my husband and I are assholes for giving him four weeks notice so he wanted to fuck us over by nor having our son, after already agreeing to it

Sorry it's so long and thanknyou for reading, if you got this fara

So, am I the asshole?