Is it weird or Cute?

So my friend told me that she has been talking to this guy for a while and that they started going to his house to have sex, and she stopped going for a few weeks and that when she returned she asked if she could borrow a shirt of his she could wear and he said yeah just use the one you used last time unless if you want another, then he pulls the old one from under the pillow saying he left it there to trap her scent because he wasnt sure when was she ever gonna come back. lol is it a normal thing? idk?