Its likely is that youre talking about some stupid shit that no one cares about, or what your saying is pretentious garbage and so they have no interest in engaging.

My best friend is autistically obsessed with war and guns. He will ramble on about some weapons shit or some war news shit and most of the time Ill listen but sometimes i will just get annoyed and tell him to shut up. This is especially the case when he tries to involve politics in with his war shit, but his autistic views make him sound like a fucking retard. Take the hint when someone is getting annoyed by your autistic spewage.