I have the perk to steal weapons, so I robbed her of everything I could and went to drop her weapon on the ground as if to tell her she's trash by comparison to me, and then the guard got all angryface so I reloaded a save. I didn't have a chance to check if stealing my own items back would give them the 'Stolen' tag, but I'm pretty sure it did.
I looked around on Google and couldn't find anything about this, so I decided to make a topic in hopes that someone on here might have some information.

