The looping conversationg dialogue found on the top left of the screen that I got was Noa teasing Alex. The one where they say "Cute" "Adorable" etc.
So that's how that works, might be worth considering making it more streamlined or at the very least just don't show it often especially if it is not a new TF.
After the supposed intro where the roguelite thingy happens. Each train car clear is like a lobby or rest are and there you can save manually? There is a save button in the middle afaik but it doesn't work. Rebooting the game just puts you in the beginning of the roguelike part of the game despite making it far. The auto save works during the intro btw.