"Hey, it's not skin off my back. It's not like we were in love or anything."

He says this casually, easily... and perhaps as a bit of a jab. Not as much as Chouji, but more at fate. He knows the other man won't get it, and he hopes that his cocky little laugh he gives immediately after - as if it were a great joke - will dispel any hint there was seriousness to it. But he knows Shikamaru will get it, and perhaps because of that he keeps a smile plastered on his face as he flops more than sits back in the bean bag chair.