Dude. I love your Kasanoda. He's sweet and adorable and just. lskjflds. I love him. A lot.

As for whether he should get over Haruhi or not... well, it could really go either way. According to manga canon, he ends up being pretty much over her... not that he's, like. Totally over her, but he's not obsessing over her all the time. But... you could go either way with him. Whichever you like~