He didn't raise him. He "only" spend the bit of free time he had with him, because he was the only one who didn't want anything from him. Also they're only 4 years apart how could a kid taking care of another kid be considered one raising the other? Them falling for each other makes a lot of sense because for a long time they've been each others light in the dark, so normal affection turned into something more

im not a fan of this story turning itu Joecasta complex kinda thing. How can u like someone u pratically raise