This route didn’t start with girls bullying to get attention. She also has a similar hobby, which is more in common than the rest of the cast. Go for it, she’s cute, bonus, brother is your best friend.
This series is actually kind of a rare exception to the usual "he's just a non-descript nice guy winning all the chicks", in that he has genuinely shown himself to be a great guy time and time again, and puts a lot of effort into it.