Or maybe I my parse failed...an individual with bipolar is sometimes sane and sometimes insane. But I'd still call the individual insane.

And I'd call you wrong. I'd also forgive the potential offense both because the symptoms of bipolar II hypomania are less well known and because your err is asserting a definitive relationship when there is merely a significant correlation.

Bipolar II is limited to hypomania and excludes psychosis. It is certainly possible to have bipolar and nevertheless maintain beliefs, actions and verbalisations that are well within the bounds of 'sane'. You may just have periods of having an awful lot of energy, not much sleep, plenty of confidence and rather a lot more sex than usual.