When you're the most happening person at the party, it's time to leave
When you're following your inner voice, doors tend to eventually open for you, even if they mostly slam at first.
That was when I first observed a phenomenon I now call the "New York Slide": you offer your words to try to communicate and connect with someone, but your words just hit a brick wall the person has erected to ward off human contact- the words slide down it and roll away.