Japanese men will enjoy this. If you remove the girl, you get the usual Pixiv dweller. And they are on Pixiv because of not having a girlfriend, so... they can draw about being emotionless assholes at they, giving them a false feeling of superiority, as far they want to revenge on the girls.
A) Is a symbolic way to show the guy is playing Love Plus with the girl as his choose. B) The guy is playing while the girl exists, yet he is an asshole.