Tadano is very good at handling situations, can't understand what a person is thinking easily, practically mind reading. >Jesus what does she see in that guy.
Have you read this manga? She has been completely alone, she couldn't even talk to another person, he helped her get a ton more friends, is always present by her side. It would be weird if she didn't fall in love with him.>He is bland
He isn't exceptional, but definitely not bland by any stretch.