Sorry you're feeling sad. But- keep in mind, the REASON she missed her dad so much is because HE is not the one around for her most of the time!
She is just a child and although she loves you, children take for granted all the things and people who are always there for them- in this case, YOU :)
I got divorced when my son was 4 and now he is almost 11. My ex remarried a year after we got divorced and I just got remarried earlier this year. Now he and his wife are expecting a baby of their own.
IME- even dads who start out with the best of intentions about seeing their kids after divorce, often fall short. With my son, he originally went to his dad's every other weekend and one overnight per week. Then the overnight was too hard because he and his wife couldn't drive him to school the next day,. So I said how about a weeknight DINNER with him? I even offered to just stick around their town and wait until dinner was over to pick my son up if they couldn't (what they say is "can't do it" but what that really means is " don't want to be bothered, too inconvenient" ) drive him home. No, just couldn't make that work either.
After a while, I just STOPPED being the enabler. I don't trash talk my ex in front of our son- but I have stopped trying to be his personal secretary and facilitator. Even when it worked out, they always do the arrangement just long enough for my son to get used to it and expect it- and then something comes up and they stop and we are back to square one.
As your daughter gets older, she will come to terms with this on her own. It's sad, but it just happens. Watching my son in the past year or so get that 'resigned' look when his dad does not show up on time to get him or cancels a weekend because 'something came up' has been heartbreaking for his stepfather and I.
But- in the end, it has made my son and husband so much closer. His stepfather is the one who does chores with him, goes to all his school events, etc. He has a good relationship with his dad and stepmom, don't get me wrong. They are not terrible parents- but they are less and less involved and I suspect that will just continue once their baby is born. It is almost more like they are an aunt and uncle my son is really really fond of and sees a couple of times per month.
I know how hard it is to feel like the 'other' parent is more appreciated. But don't begrudge your daughter that. Sad as it is, it is very likely that as she gets older, she will be less and less close with her dad. So let her have this now while she still can. You will ALWAYS be 'the mommy' and be there for her. She loves and will show it more and more as she grows.
Happy holidays to both of you! *hugs*