The wrong compliment gets filed away like a receipt

In front of people, she may toss the compliment straight out.
An eye roll. A sharp little ‘please.’ Maybe a joke lobbed across the table so nobody can claim she enjoyed it. The performance is quick, almost bored. But later, the sentence is still sitting there, perfectly intact.
She remembers whether he said ‘the dress’ or ‘that dress.’ She remembers whether he looked down right after. The doorway, the glass in her hand, the friend who abruptly became fascinated by her straw.
Rubbish does not usually get filed away that carefully.
The silence ends up louder than any flirting

Sometimes she leaves the answer out entirely, because saying it aloud would make the whole thing clumsy.
He delivers the borderline line and waits. She gives him one extra second of eye contact, then checks her phone. Or fixes a sleeve. Or asks somebody else where they parked. Nothing large enough to call flirting. Nothing clean enough to call rejection.
The table keeps moving, but the line is still there, parked between the glasses and the napkins. That is what trails him out the door later. Not her words. The empty space she left, and the way she walked off before he could make her fill it.