Is it common for people to be that demanding and rude? Sadly, moreso than anybody'd like. Does that make what happened to you okay? Definitely not. I can't count the times I've left in the middle of RPs, serious discussions, and goofing off online due to anything from yes, being so tired I had to go to family being in the same room as me to my internet dying. My friends don't care-they know spit happens and they let it slide.
~K