No, I don’t think you’re being demanding.
I’m learning that it’s a big red flag if a person refuses to accept rules like this. It means they don’t want a real relationship. If they don’t want a relationship that’s fine so long as you’re on the same page about it. Keep it casual until you’re ready for something deeper.
If you want something deeper and your partner doesn’t, it’s time to think seriously about finding a new partner.