This therapist's behavior sounds extremely selfish and narcissistic IMO also. My 1st T had his office phone on and sometimes answered it, but it did not bother me as long as they were quick calls and did not distract his attention. Yawning is something that one can hide or do discreetly, I think it's only polite during a professional meeting. But I could tolerate these if not excessive. The nail filing though... that would have a not-very-nice reaction from me for sure - how is that something one cannot delay and do privately?

If a T did these things and then blamed her disruptions on me, I would certainly tell her what I think of it and would not go back.