@Manganime I think she should worry more about the fact she has the gall to want to date him and have him as hers but won't even lend him a sweater she wore for half a day
despite knowing that smell is his thing. Here in the west, it's not even given a second thought really if your partner wanted to borrow your sweater because they're going on a trip and they'll miss you. If anything it's incredibly romantic, generally. I remember in high school guys would lend their sweaters to their girlfriends. She's lucky he's really smitten and tolerant, and the idea hasn't occurred to him that he could find someone more accepting. But I guess the whole "her smell is the only one for me" plot device prevents him from leaving.
Like if you're gonna be with a someone, accept everything about them or let them go to someone who will give them what they need FFS.