Am I overreacting ?

Hey just trying to see something real quick. When you cook for your s/o , do they wait for you to sit down before they start eating ? I cook everyday and almost everyday end up eating by myself because my fiancé doesn’t wait. Out of whatever I always make his plate first and most times I end up still having to finish cooking for myself or just make my plate. Am I wrong to be upset that he doesn’t wait ? I just feel as if it’s rude since I cooked for you, you can’t even wait to eat together. Idk let me know in the comments.