Everything else is fine, but one thing that keeps bugging me is she sometimes brings up weird subjects unprompted

Last night she said out of the blue "What would you do if we had one night stand and then I blocked you?" I said - What the hell? Why are you asking these questions? Are you planning on cheating on me? She said she's just curious. I tried to steer the conversations away but she kept at it.

After a few minutes, she says something along the lines of her wanting me to share more of my private past experiences, how she wants to know everything about me etc etc... I told her to be careful, because if you ask too much you will learn too much. "Do you want to hear about that time I had sex in my grandparents house? Or that time I went to jail"? I said kind of jokingly

Then she just, out of the blue says she had a threesome (WTF) but she didn't really like it. Kind of sounded like she was making it up but still. Why is she even telling me those things?

I told her I am not interested in both hearing about her past partners and sharing my experiences, and to never bring it up again like this unless I explicitly ask about it.

Thought? She's generally a timid girl but I'm not sure what to think about this