Yeah he pops up as SOON as you make peace with the AI. Kind of annoying. But post patch I've been able to make friends with him. Of course friends with everyone post patch is really easy.
The biggest problem I have with Alexander, and it bears mentioning, is he doesn't practice what he preaches. This guy should always be at war. I think that would make this a very unique AI civ, or possibly a very dead AI civ depending on who his neighbors are. I think this Civ should be programmed to always be at war with at least 1 civilization. Some games I see this guy is hardly ever at war, and he has the gall to criticize me for not being at war?