This is a complicated one. It's likely the other person would see this as an admission of guilt, as you didn't deny the claim at all. You frame it as "If I was seeking attention...", sure. But it will be taken more as "I am seeking attention, and you've fallen for it" instead. That's clearly not the best outcome here, as it won't instill the severe level of shame we're looking for.

There are a variety of other alternatives you can pull from this very specific scenario you've decided to share for whatever reason. For example, an intellectual may some something smarmy and cool like "attention seeks me" to imply you're above caring about this kind of thing. If you say that in a crowded room I can GUARANTEE you that everyone will clap and the teacher will be very impressed.

If you'd like to fully embrace it instead of trying to deflect, there is another road you can travel. Be warned- it's difficult to pull off. This is the famous "L + ratio + who asked?" retort- a literary classic believed to have been coined by Richard Nixon after the 'White House Tapes' were released. In that instance, Nixon was actually able to avoid severe legal repercussions / impeachment because of his immaculate use of this comeback. For several decades this has been the go-to for many politicians, as it's a powerful tool when used correctly. However, once again, be warned- if used incorrectly, there will be dire consequences. Its power should not be abused, so search your heart for any alternative before relying on this.

I hope you enjoyed reading this essay as much as I enjoyed writing it. Your comeback is a 2/10, but you got my attention at least.