AIDA seemed perfectly normal for her situation, but a cliffhanger revealed that she has less than noble intentions, killing an agent and keeping a bleeding May locked away.
Coulson and the rest of the team have no idea that the May they’ve been interacting with the whole episode was actually a Life Model Decoy, whose ultimate purpose is still unknown.
For those who have not caught up on S.H.I.E.L.D., AIDA first premiered as an artificial intelligence, and then was placed into a robotic body called a Life Model Decoy designed to perfectly replicate human behavior — except for the fact that she’s 100 times smarter than a human and can use her math brain to calculate portals to open spirit dimensions.