that's interesting, still not sure how important it is, I saw lots of ups and downs in Iran-Saudi relationships in my lifetime. in dictatorships you can solve all the problems or start a new conflict in just one night. these kind of "relationships" usually don't stand for a long time. but it seems they both "listen" to China. at least for now
I think the regime in Iran knows they are in deep trouble because of the situation (I mean the economy) inside the country and if they don't act the next wave of protests (which will happen sooner or later) will be more dangerous for them.
and Saudis know if/when the war starts, Iranian missiles won't land on US, they will land in KSA. it's in their best interests to not fight the "cornered cat" They know they can't trust the Americans to protect them.
I just hope something good came out of this for the poor people of Yemen, it seems everybody forgot them. after all they don't have blond hair and blue eyes.
as an Iranian I feel ashamed when I know my country is somehow responsible for their suffering (even though the Iranian regime don't take orders from its people but still)