Spartacus launching off Crixus' shield towards the assembled nobility on the balcony (and then Batiatus using a guest's head to block Spartacus' sword )
Illythia sealing the doors and smirking, my hate-crush only grows
Lucretia: Please... Crixus... Our child...
Crixus: I would rather see it dead.... Than suckle your breast. *sword through womb*
Varro's wife going batshit crazy on the boy Numerius with a knife - "He was not a perfect man, but he was mine. HE WAS MINE!!" (I'd been hoping the little shit would get his just desserts).
And of course the end of Batiatus at Spartacus' hand. A real shame that John Hannah (and presumably Lucy Lawless
) will not be in S2, they were probably the best things about the show throughout. Apparently they will be in the prequel series being shot at the moment though