It shouldn’t distract the therapist. They usually have a white noise machine outside their door and would be used to it. Also, a lot of headsets and meeting apps filter out background noise. My friend and I use Google Meet for weekly chats and I can’t even hear her dog bark when they’re in the same room.

If you have an old radio, tv, computer, or some other device you can play white noise on, just put that by your door. You don’t need a special machine. I’d actually keep it inside your room so your gf can’t move it or “accidentally” turn it off.