Support Person in TX Room

We have many "Like" experiences that are detailed in this forum. This is a nice support group! We need to share experiences as a way of helping keep our mental health in check. I experienced something yesterday I've never run into...and it really annoyed me. First, I was diagnosed with MM in 2018. After that having some Dr. drill for oil in my pelvis then 17days in the hospital for transplant....and you know everything that follows. My wife has been with me thru the whole thing. She recently got breast cancer and I've been with her. She's going to be fine, but she did have a treatment yesterday and for the first time in 8yrs a support person (me in this case) was not allowed back into the TX room during treatment. They said "We've started enforcing our policy of 'no-one goes back but the patient'" To me, having a support person is incredibly important and I'm extremely unhappy with this. What are your experiences?