Well, she likes to, so it's not like she's giving me this huge gift that I should be ridiculously grateful for...but yeah, it's not like that with my other professors and I don't expect it to be. My point is just that it's not a boundary thing; it's a "do I have time to read your emails/do I want to read your emails?" thing, and if she said not to email anymore, it would not be a huge deal.

And I bet she has a lot of experience with laying down actual, real boundaries in actual, real situations. She teaches a course to people in prison and since she's often the only outside contact they get, they cling to her. So she spends about two hours teaching her course and then six hours sitting with them and talking to them. She doesn't mind it.