Karen Bassey's "Empty" is about feeling like a stranger among people who seem to belong together. The speaker watches others enjoy nostalgia, a stroll down memory lane, but none of those shared memories include them. What the others recall is "a history I never made," so the speaker has no place in the story being told.
The feeling grows more painful as the poem goes on. The others are "happy" in a world where the speaker "cease[s] to exist," and the speaker decides they are "to good" for them (the missing "o" is in the original). That line sounds less like a compliment than like quiet self-dismissal. The final lines show the speaker believing they are a burden, and assuming the others feel the same, though the poem never shows them saying so.
The mood is lonely, withdrawn and heavy. Short lines and plain wording make it sound flat and tired, as if the speaker has stopped arguing with the feeling and simply accepted it. The title, "Empty," sums up that numbness.