I am 3 years in with my current therapist, and this is the first therapist that I have spoken consistently about my separation anxiety. Every time before her absences and every time afterwards, ad nauseam. She has been very patient with me. I have found a decrease in my anxiety and recently have found times were I haven't even been bothered.

In addition to talking about it I also text her in between sessions, mostly to check that she's still there.