Dunno why he'd wanna go after someone who's obviously a pretentious bitch, and cave to someone who's a bully all after he jacked himself out as well. Writing is already bad after 2 chapters.
Natsuki himself is aware he made a lot of missteps in his first chance because he rushed and doesn't know better. This time he had more ability to back himself up.
The case with Hikari is likely he rushed to confess without approaching her, so she doesn't even know him that time. Unlike this time when they are part of the same friend group and got more time to slowly know each other.
The case with Tatsuya is not bullying. They are friends, and Tatsuya actually stood up for him even when Natsuki never had enough skill to be regular player in the team and everyone look down on him. It's only after he screwed up too much that Tatsuya finally walks away.
Volume 1 story actually is more about Natsuki getting over the guilt from failing his friendship with Tatsuya in his previous try and build a better relationship in this life.
Lots of chibi emote face in this series.