That's my point. If Michael were an honest person, his girlfriend's behavior would be strange. If he's a liar and she knows it (but knows how to keep a 'safety envelope' with someone she trusts that Michael doesn't know about) her behavior makes perfect sense. Indeed, it wouldn't be implausible that she's a significant driving force behind all this.
I think you have a devius mind...lol...I just believe she is keeping quiet while he does what he wants, I don't think he is the type you can argue with. Lets not forget they have two children together, yet he says he loves Terri, yea, sure he does. Michael loves MIchael.