This picture gave me a cute idea

So I'm mine and Coper's world, Fritz also took care of Ludwig. So I can imagine Fritz doing cute/nice things like this for Ludwig too. Especially after WWII. After he was done haunting Hitler, I feel like his ghost went back and forth between the East and West sides of the wall to check on the boys. This is how he found them most of the time, passed out on a desk, over a book or letter. He'd cover them up with a blanket and give them a kiss on the top of the head. On Ludwig's side, when Alex went to visit Ludwig in the morning, she'd pause, feeling that there was something paranormal that had passed through. But she new that it wasn't anything or anyone mean, seeming the air wasn't cold, it was warm. Whenever Ludwig asked her what was wrong, she'd shrug and all honesty say nothing.