Been there, done that with accusations of not being supportive. I'm pragmatic and it didn't even affect my income. Sounds like you offered a viable suggestion with weekend tables. Starving artists aren't called starving without just cause, imo. I don't believe for one moment that you aren't supportive, reality does bite at times. And this does affect you financially. It's irresponsible of him.
I wish there was a better expression than a guilt trip. It's certainly projection.