"Did he tell you he wanted you to use the intel he gives you to work on yourself, instead of just zeroing in on Sephiroth? And did you tell him that you think the key to your graduation is doing the opposite?"

Shaw doesn't think Zack lied to her during his sum-up, and she doesn't think Angeal is lying to her now: but it's becoming clearer and clearer that their perceptions of the conversation had differed massively.