Hello Idkwho, and a warm welcome to the site.
It's not easy when you seem to be the therapist for a friend because when you see them, you're not sure how they will be feeling and wonder whether or not they just want a friendly chat, or whether they want your advice about a problem they're trying to cope with, so this puts you on edge because you aren't feeling as though you can provide any help, only because you aren't feeling mentally well yourself.
Therapists, counsellors, doctors, psych's and friends are humans and still prone to get any type of depression, they aren't exempt, no matter how well trained they are, and even if they try and take every precaution possible because this illness has no barriers, so whether you do everything to avoid this from happening, it may not be strong enough.
So we thank you for posting your comment and would really like to hear back from you.
Geoff.