He’s probably got it in his head that he’s been sooooo obvious about his love for her and that she is being deliberately obtuse. The reality is he’s made up so many stories in his head about how he “won” her with his “strength” and “great personality”

that he’s started believing them and can’t reconcile the fact that he’s a chickenshit that can barely get a word out around her. But it’s still her fault for not noticing the effort he’s put in “for her.” /s