For what it's worth, I kind of ???'d at first too because there is a level where it gets to be unhealthy. But then I kind of stepped back and thought about the context, what OP's actually doing in practice, and what language is being used.
Maybe I'm off-base, but this kind of reads to me like someone who might not be as experienced with fictional crushes getting hit with it for the first time at a later age than most folks.
I mean, when I was a teenager I got stupid dramatic about fictional crush stuff. That experience gave some context though and things kind of mellowed afterward. Some was hormones sure, but honestly it still probably would have caught me off-guard if it happened for the first time when I was older.
To some degree, part of the joke about husbandos/waifus is that they get taken way too seriously lol. It's why people act mortified if someone says "your waifu is shit". So taking it in that light plus the impression this is a normie (so to speak) who's experiencing this for the first time, it becomes not as worrying I think. A regular person who otherwise didn't know this is a thing might assume it's in line with object-marriages or whatever because the concept is novel. In practice though it's more like people swooning over Mr. Darcy or something.
It's important to compartmentalize and to remember that a fictional character, as much as you might adore them, will never have the same depth as a real human being. When you know and are confident in this, it becomes a different kind of love and pretty innocuous.