Hm, my T usually just signs her first name without any sort of "take care" or "be well." My marriage counselor is very inconsistent--in something he just sent me, there wasn't a greeting or a signature, but then others start with, "Hey LT," or "Hi LT" and might end with his first name or his first and last name. I'm one who definitely overanalyzes things, so I'd be like, "Oh, he signed just his first name, that seems more personal" but then he'd sign his full name the next time, and I'd think "Is he trying to put up stricter boundaries?" But it's probably just, as others have mentioned, how much time he has to type the e-mail, whether he's on phone or computer, etc.

Both he and my T tend to write very brief e-mails--sometimes just a sentence long. So it's very easy for me to overanalyze that! I recently had an e-mail like that from my T that I was stressing over, worried for the next appointment. I mentioned it to her, and she'd meant it in a totally different way than I took it. I think it's probably projection at work here, where you're projecting what you think someone is feeling onto what they wrote. If you think someone is mad at you, "Take care" can seem dismissive. But if you feel close to someone, "Take care" can seem...well, caring.