It's impossible to be in love at first sight unless you're already in love with that person but you've never seen them before. That means you know them, you have a relationship with them, and so forth. Okay? Because if you lust for someone at first sight, yeah, you might get in them jaws, you might hit it from the back, but at the same time, though, uh, this is an insufferable, terrible human being who nobody should have ever talked to at any time of day.