My t took 3 weeks off when her brother died. The first thing I said when she told me she had to take time off was that it sucked that I wasn't going to get to see her because at first she didn't know how long she would be out. It was like the words spilled out before I could stop them and I immediately felt like the most insensitive jerk ever. She wasn't upset by what I said and said feeling that way was understandable.

Your t sounds very kind for allowing so much contact while she will be gone. I only heard from my t once during her break, but for me, it was fine. I think your t will be okay. I would imagine if her family member does die, she would take the necessary time she needs to grieve properly. My t came back soon after her brother died, but didn't take back her full case load at first. She didn't bring her grief into my sessions and even though I knew she had to be sad, my sessions were never any different. She was fully attentive and worked in the same way she did before.

I'm only speaking from my own experience when my t had a family member die. All therapists are different. I hope everything goes well for you