My plates been shit-testing me a lot, and like a rock i ignore most of them and just dont let them affect me at all, because im aware of whats happening.

The other day she crossed the line, and made a scene at the supermarket at 6pm during the busiest hours while in line. Usually ignoring works best, but she was putting me in the hotseat and drew the attention of all of the lines at the store and i was just ignoring the fuck out of her with a smirk (amused mastery) instead of coming across as "the arguing couple" in society's eyes. I never argue.

Anyways I kept frame, waited in line ignoring her, and finished buying what i needed. By the time i got to the car, i told her to basically 'never yell at me in front of people again.'

instantly she submitted, agreed, apologized, told me she "didnt mean to" blah blah. I told her "it doesnt matter if you "meant" to or not, do not do it again." She couldnt even look me in the eyes the rest of the night (attraction), biting her lips hair flips IOI's x1000 and then of course the best sex we've had

My question is: at what point does ignoring shit tests make you come across as a doormat? Had I ignored her at the store, and not addressed it in the car, i could have seen the night ending differently. If I had acted like nothing happened i feel she would have interpreted it as "OK, hes allowing me to treat him this way." On the other hand if I get triggered and give her "the talk" with every shit-test i would come across as sensitive and butt hurt like things secretly offend me all the time. What draws the fine line here?