Nobody cares what you deem.
We need a proof for this claim which is widely considered false.
Nobody said you couldn't.
Couldn`t? You didn`t say it, indeed. However, you said shouldn`t which meant a piece of negative advice to which I replied with can - the modal verb of possibility and ability. That is quite a simple grammar interaction.
Are you feeling some self-guilt ?
Yes, decades ago, still a single student of university, I was teaching in a hospital and one nurse was making advances towards me but I ignored her. I still feel this guilt.