Maybe he was just being mean or having a bad day and decided to do something hurtful.
Maybe she wasn't looking where she was going or there was something on the ground that caused her to lose her balance.
Maybe he was being clumsy or didn't see the person in front of him.
The reason might be that the girl has something the guy needs. Or maybe it's just a random act in a crazy cartoon world!
Maybe the guy has some bad personality traits or is influenced by bad surroundings.
Maybe he has a crush on her or finds her special in some way.
Well, a guy and girl cartoon might have colorful and cute designs. The characters could have distinct personalities and unique looks.
Maybe he likes her and wants to show his affection.
Maybe the guy did something wrong that really upset the girl.
The reason could be that they've had a great moment together and he's expressing his joy through the hug. It might also be a part of a story where this gesture holds some symbolic meaning.
Maybe he lost her and wants to find her to make things right.