I tried to 'sixchange' Piper via console (for reasons) and she disappeared. When I typed it again she re-appeard. I tried that on Cait too but now I can't get her back. She's right in front of me, I can talk to her but can't see her. I guess curiosity killed the cat I tried typing it back, fast traveling, coming back to older save files but it's not changing. Someone please help!

She just doesn't want to be with someone like you.

I find it strange that loading to old saves doesn't work. It should. Load an even older?

you need to restart the game before reloading an older save. that means quit to desktop not main menu.