I thought it was sweet. Yes, I agree that it would be weird and a bit creepy for a normal teenage boy, but this is not a normal teenage boy we're talking about. This is a kid who thinks that this is going to be his last night on earth. He's very depressed and he is planning on killing himself very, very soon. He loves his mom. And this is his last chance to connect with her and just be near her. So I didn't find it strange for him. I have a feeling they might cut it out of the movie because of the way some people might react, but I don't think there's anything wrong with that moment.