Probably with a bit of difficulty and self-induced stress. In my opinion (I can be wrong) it seems obvious that she was doing everything possible to avoid being around BB alone or the whole family unit - her, BB, and the kids (her and the kids was no problem) - for years. She made herself busy and out and about from as early as 3:30 in the morning until 9:00 at night. That photo of MB and BB out (was it Valentine's day?) speaks volumes.
That, for me, is why I have been discounting that there was an "open marriage" in play. Because if she were always out and about anywhere and everywhere all day long it provides the opportunity to work in an affair. And, all that avoidance also makes it easier to carry on an affair because for a woman that is a monogamist (I believe she was) they have to not put themselves in a position where they are having sex with two different men since they can only "love" one man at a time in that way. My take, unless anything comes out to change it, is that if talk of an "open marriage" was brought up at all it came from MB after she was already in an on-going affair but before being caught. If it comes out of the blue, or if it comes up as a solution ahead of other marriage saving ideas especially in the presence of a lack of communication, it is a red flag.
Like, I said. I could be wrong.
