MadRat
Cheese Raider
Seriously - every 5 turns or so he pops up just to troll me with some inane comment about my army, economy or empire "size". It is also no wonder every other IA seems to want me to go to war with him. 
Rat

Rat
If by flirty you mean settling directly next to your empire even if she is far away to block off tiles and resources, and then giggling when you tell her to stop, then I agree.
if by flirty you mean buttering you up with words while she conquers half of the world, then I agree.