A lovely image painted here of a party - not just any party though, a 21st birthday party for a young woman. The previous year she did not show, but this year, a year on the candle still burns, the presents remain unwrapped and cards unread. The young lady is not coming, is she? She is never going to come, right?
Dennis, there is more beneath the words of this poem and this makes it powerfully emotional.
I like the rhyme scheme you have chosen, aaaa, bbbb - this is not always easy to pull off. Well done on a good job.