I can't speak for your wife but I know from my own experiences that no, during a Manic episode, love for another is not enough of a deterant.. I know this is hard to hear, but if it were me I know these things would have happened as well.. and most likely will again. Bipolar = out of sight, out of mind.. you aren't available to be there for her, so in a way you have "abandoned" her... or maybe she's in the mindset of "eh, I'm having fun, he probably is too so what the heck" IDK.. there are soooo many different issues with Bipolar.. I wish you luck, wish I could have been of some help