It's certainly very emotive. The concern I would have as a reader is why I should care about the protagonist. The struggle of finding and maintaining companionship is very real. However, the lack of setup undermines the intention of the story. There isn't much to develop the characters. I understand the purpose of the story is brevity, but there's still room for more prose. The ending line is a bit redundant. As you can see, it has invited a bit of sarcasm. Is it an illustrative analogy for someone close in relation suddenly disappearing and reappearing in a person's life? Are the random elements of the disappearance and the ball of light part of that possible analogy? These questions make the delivery of the monologue seem a bit mawkish.