Adeya has one (an NPC), though it's more of a "I never want to see or speak to you again" deal than an "actively plotting revenge" one. As far as making them, well I'd say she's more prone to making rivals than anything else, though the possibility is there (especially since she is the type to hold a grudge for a very long time). I certainly wouldn't mind it; conflict can be fun. 
As to whether she would try to kill any of them, it mainly depends on the circumstances and why they became enemies in the first place, but potentially yes.
As to whether she would try to kill any of them, it mainly depends on the circumstances and why they became enemies in the first place, but potentially yes.
