Regina clearly does not love Henry at all. These gestures are simply part of her nefarious plot to raise him to manhood then seduce, kill, and finally eat him.
Buying a comic book? That’s for her personal collection.
See that part at the mine? That’s just because Regina likes to blow shit up.
And the game is just her version of the Blind Witch plying kids with sweets before cooking and eating them.
All part of Regina’s Evil Plot of Evil Doom!
Don’t forget that time she took time out of her day to bring him his lunch. She’s clearly just fattening him up.