Do fathers have the deepest love for their daughters?

I'm 17 & my dad got remarried 4 years ago. I hardly get to see him because I don't get along with my stepmom. So I cut my dad off coldly. I'm starting to see him a little more. Today he took me out to a fancy restaurant. Then he bought me a necklace & got my haircut. My dad used to neglect me a lot in the past. He also gave me $300 to go shopping. He's a lawyer & usually doesn't give me money. He always treats me special when I'm with him, can someone please tell me why? I feel guilt taking his money too. What's his deal?