AITA for walking out of my girlfriend’s birthday dinner after she called me her discount boyfriend?

Vanessa smiled over her birthday candles and told the whole table, "Donald is basically the clearance-rack version of a provider." The laughter that followed was quiet, nervous, and mean enough to land. I didn’t argue. I didn’t raise my voice. I simply asked the server for a separate check, paid for my own meal, left a proper tip, and stood up while Vanessa stared at me as if I had finally ruined the show she’d been rehearsing for months. ---------------🐋Whale Tales🐋--------------- #reddit #stories #redditstories