[Even without their bond, the shift of expression would have been enough to clue him in to the fact that they are nowhere near on the same page. She looks so solemn, carefully setting down all distractions to turn her whole focus on him, like someone preparing themselves to either receive some terrible news, or ready to offer solace.]

...What? [Clear confusion is what she gets in return- nose wrinkling, brows creased, and then he shakes his head.] Don't tell me to stop being weird and then act all weird yourself. Everything's fine, I just wanted to ask you out.

['-to lunch' would be the intended end to that, if he'd bothered to think for two seconds on how that could come across as... whatever it likely came across as. But as though unconcerned and unaware of those implications, he just returns to his coffee.]

Don't let your sandwich get all cold.