As I said, I Bought the game on her ps4. With her PlayStation network account.
I just bought a ps4, and would like to switch to my PlayStation network account,because now when she turns on her ps4, it boots me. Its not a WiFi issue, this happens while hardwired in as well, and I was on the phone with her to test it.

I did not know I could call and have them de-link it. I will do that now. Thank you for the advice!