Sucks. But practice is practice.

If it was just a jam session (a night to meet to have fun then I would say --Your a little harsh). But if you were in the band to progress, gig, and make a life playing music, and this was an understanding by the other band mates when you joined then--- You did the right thing. Your serious they are not. Black and White, no gray area. Good, smart move. Wish you the best of luck infinding a new one or starting up your own from scratch.

P.S.--May want to re-join until you have formed/joined the "new" band . That way you are still "socializing musically", not "woodshedding".

The whole cut off your nose to spite your face rap.

My 2 cents.