I am pretty sure you are supposed to NOT look at Ari. Idk I just look at her once then look away and she leaves but I am dealing with the same issu
Looking at Ari does nothing. She pounces you if your SAN is low.
There's actually a hint in the control room. Look for the plaque with Ari's picture that says something about Employee of the Month for Mental Awareness.
If Ari attacks you, it's because your SAN is too low. Use the squeeze doll to bring it up. Don't use it too much, or you'll summon Misty.
It's something like 5 times in 5 seconds
If you are still having problems I learned that she depends on your sanity so if it's to low she attacks so squeeze the plush