After all his actions so far, you really think there's a plan?

I think he is really THAT stupid. He's accused her of being obesessed with a dead guy (maybe true, but not the thing to say to someone), he's stalked her to the point of joining her club, then backing out, then deciding that he really does like her and needs to stay with the team to be near her. Later he would accept the confession of another girl because he was starting to get fed up with Suzuka and from shock of that confession. After that, while still going out with Honoka, be coerced into showing off his suprisingly effective and kickass confession skills with Suzuka.

Then due to Honoka's insecurity and his stupidity of talking about other women while with her, end up breaking up with Honoka, who honestly did love him (and no crap about "She couldn't make him into the image she thought he was." She reunited with him, and pretty much found out he was exactly what she thought of him from before, because he's pretty static as a character).

Then to save face, as he's done before, insult Honoka and say she was cramping on his style, etc, to Suzuka, who he not only desires to still impress with his manliness, but assure her that he really didn't like Honoka that much. She gets pissed off (and rightly so) and he looks confused and a little sad.

That doesn't sound like all that great of a 'Grand Plan.' You are giving him way too much credit. He's stupid, he doesn't think things through before he does them, and doesn't weigh the consequences of any action he takes until after its too late. It sounds to me like he's fufilling those a lot more than any grand plan. If he had thought up some plan, he wouldn't have gone through all this mess.