Astoria had left him a few months ago and left him with full custody of a ten year old Scorpius and a whiny, clingy, needy three year old. Which was you.
He didn't need child support from her as he was stupidly rich as his parents had left everything to him when they died a small while after the battle of Hogwarts, but the thing is, three is a difficult age as its midway between a toddler and a child. You mostly acted like a child, but occasionally had some toddlerly tendencies.
Though, Draco would never admit it, he secretly enjoyed you cuddling up to him. He knew that he could scoop you up at anytime and you'd be perfectly fine with it. He may or may not use this to get free cuddles whenever he wanted them. While Scorpius was slowly becoming more antisocial, you were as loveable as ever.
You were the exact opposite of what Draco was at your age. While he was snarky, cocky, spoilt and entitled at your age, you were caring and kind as well as being a sucker for cuddles.