Is this weird?

My husband has 2 kids (1 boy and 1 girl) from a previous relationship and we are TTC now. Growing up and thinking about my future I always envisioned having all boys and that’s all I wanted. But ever since seeing my guy with his daughter I want a little girl so bad. He’s so sweet with her and adores her so much. She paints his nails, he plays barbies and makeup and they just have such a bond. He is close with his son too, but with his daughter is just so different and sweet. I never knew my dad so this makes me want to have a daughter and give her what I never had (a healthy loving father-daughter relationship). Is this a weird reason to want a daughter?