It's not so much the fact she won't go public, she has the right to keep her relationship private.
It's the fact that she lies straight to the face or her audience and put these stupid acts like the neighbor excuse, essentially infantilizing people like they're 5 years old and won't figure it out...
She's literally setting herself up for the parasocial comments by acting dumb like that and lying instead of just not saying anything or actually hiding her relationship.
She's always been doing that, she has acquired that reputation of being super fake, and most people see through her bullshit and are fed up