I was wondering if there's any way to leave the Brotherhood of Steel again after you joined them.

Some background: On my latest playthrough I joined the Brotherhood simply to infiltrate them, get aboard their airship and drop a Nuka Grenade on Maxson while he's giving his speech.

(The ensuing battle aboard the Prydwen is crazy - I can recommend it to anyone who doesn't want to do stuff for the BoS.)

That turns the BoS hostile permanently, the vertibirds too. Also fails most BoS quest you may still have. This is all good.

However, in some conversations my character is still being treated as a member of the Brotherhood/there's options to talk about the Brotherhood doctrine and similiar things, and Curie also thinks we're still members.

Can I do something to make that go away? I'd even take a console command if there's no ingame option.

Thanks for any help.