Someone has left the speaker's life, and the speaker can't settle. The poem opens with restlessness, a feeling of being unable to get comfortable in the days since. The speaker is trying to forget this person, but the effort fails, because the memories keep arriving uninvited. The line about appearing "out of no where" captures how grief often works: it doesn't wait for a good moment.
There's a quiet contrast in the phrase "faded from my reality." The person is gone from daily life, yet still present in the mind. The poem doesn't say why they left, and the poem doesn't tell us whether the person moved away, ended a relationship, or died. That openness lets the feeling stand on its own.
The final line, "I miss you," is set apart on the page, far to the right, as if the speaker has finally stopped fighting and admitted the truth. The mood is tired, honest, and sad, with a plain simplicity that makes the ending land.