Would I be able to keep her ually interested or just move on?

Hi, My Ex-girlfriend and I had a ual conversation and we were talking about our ual fantasies and she told me she wanted a 3 sum and for it to be 2 guys 1 girl and for some reason my heart started beating rapidly and I started shaking, I never knew this side of her.. even when we dated.. her exact words we're," look, i don't care if i don't really know the guy, as long as he's up to it, doesn't have a disease, and wears a ******* condom " and over three years shes changed and I figure she might have daddy issues because its just her and her mom and she hates her dad for it and in our p relationships shes lost interest because I couldn't show her PDA. Any suggestions? I want to talk to her about it as a friend and not as a partner because I really think she needs help because the fact she said she didn't care who it was and if she knew him or not is low for her because just last year she told me she had to know the guy, they had to be in a steady relationship and sudden a drastic change.