She -is- going to take a lot of shit from her son, but she is more serious about treating this discreetly than Walt is. But wtf was up with the coin flip? She trying to figure out where she wants to run off to or what? I mean, she was obviously a bit freaked out when Walt went on his little rant about him being the one doing the knocking (Which was coming, sooner or later, I felt. She just kept downplaying what he did, and almost insulting the amount of effort he had put into his new job.)