Need advice!!!

So me and my fiancé are having a baby in sept. Well he told me for next year he wants to claim our daughter on his tax ( which I don’t mind) I’m just upset cause he doesn’t want to share that money. He wants to pay off his debt with that money. Which honestly hurts me cause I’ve bought everything for our daughter. He only bought a couple things. The rest was on me to buy for our daughter. Do you think it’s fair for him to claim our daughter and not share any of that money with me?