Really? Bugger. I was going with what the https://forums.totalwar.org/vb/showthread.php?t=45315 guide said about triggering the civil war. I knew popularity with the masses / unpopularity with the senate would trigger it eventually but cancelling agreements seemed so much more convenient, just a bit too convenient :)

It's around 150 and 've got 12 provinces (just N. Africa and Sicily) and five armies. Egypt is the only viable target but 've been holding off going after them lest the civil war trigger while 'm down there.

From memory: The Julii are down to 1 point of popularity with the senate (but have been for a while now) and the Burtii are just above half popularity with the masses.