The speaker feels shut out of every lively gathering. Parties, groups and crowds all turn them away, and the poem says so bluntly: "deny," "ignore," "detest." Full, vibrant spaces have no room for them, so they retreat to the places and hours that are empty and quiet.
What stands out is how the mood shifts. The poem opens with loneliness and rejection, but the repeated phrase "empty, lifeless" slowly changes meaning. These spaces may look bleak, yet they are where the speaker can "be myself," free of pressure to fit in or to hear that they are "a hopeless case." By the end, the emptiness has become "a home."
The tone is quiet, honest and a little sad, but also defiant. The speaker doesn't beg to be included. They claim the one place where nobody tries to change them, and that gives the poem a feeling of fragile relief.