Hurrah! I know how frustrating that was but I swear the rest of the story isn't like that. I've read quite a bit ahead (the website sadly does not exist anymore), so I know.
ML is really not as wishy-washy or stoic as he seems on the surface. He takes things at his own pace and that backfired on him in this case. She ended up getting a boyfriend suddenly. Even if he was aware something was fishy, it wasn't his place to intervene. He could have walked away and moved on. But when he tried he realized he liked her way more than he thought he did. If he'd known it was gonna be like that I promise you he would have moved faster from the beginning.
I actually really like the ML in this one. He's surprisingly cute.