I was totally picturing Samantha as a future Bridget Jones (perhaps partially inspired by the British accent) and this led me to a thought about the narration (which is rare for me) - it fit nicely.
It took me perhaps until day 2 to realize she was getting the gifts from the 12 days of Christmas. After that, I was gently amused; although, yes the ending did leave a bit of whiplash and does not bare too much thought because it's sad/pathetic/horrorfiying that she escapes a stalker by marrying someone else. There wasn't enough interaction with Liam to explain her change of heart adequately to not make it sad; although, the fact that her mother has been married 6-ish times as a career makes it plain that marriage is not permanent in the future.
I was bit confused by the end and had to relisten to realize that this was meant to be a true electronic diary no editing, and then the story made less sense. In the future a vapid, fashion conscious girl would be documenting all her purchases, checking into restaurants and stores through future facebook, etc, etc, etc. The fact that it only documents the weird stalking gifts and then she says I went shopping without more documentation makes the story seem a bit dated. I certainly wouldn't have wanted to read that story, but it seems to have been written before people, especially shallow ones like this character, felt the need to electronically document the minutia of their day to day in a public forum.
That said it a cute, amusing Christmas story that I really enjoyed listening to (at the end of January because I am very behind on my EscapePod).
Also I learned something! I had never noticed how many birds were in The Twelve Days of Christmas either.

The birds just kept coming and coming.