IMO carpanthers makes some great points regarding the deceptive nature of FM's statements. If anyone wishes to look further into this from a statement analysis perspective, check out the post on the Statement Analysis Blogspot page, and the subsequent comments. (Wasn't sure if I could link that here, but it's easy enough to find via Google).
This angle has got me thinking about deception in general and its place in the dynamics of a dysfunctional family. It seems evident that FM is deceptive; however, it is HIGHLY evident that Maura herself was deceptive in nature. She stole, committed fraud, had an affair, etc. I'm not judging her. Rather, I feel that deception was likely taught to her from a very young age. I feel this way based on my own personal experience. I grew up in a highly dysfunctional family and was raised by an extremely proud mother who began teaching me to lie at a very young age when it came to our ugly truths. So, deception was ingrained into me and indeed manifested into related negative and even criminal behaviors as I grew older, some of them not dissimilar to what Maura seemed to be going through. Of course every scenario is different, but Maura must have picked up these behaviors somewhere, and from where I stand, her behavior screams "family issues" to me. I'm biased based on my own experience of course.
I want to add a little more here, because I feel it could be relevant. In the end I was diagnosed with Complex Post Traumatic Stress Disorder. If you don't know, this is different than the PTSD you hear about most often, which is usually the result of a single traumatic event. C-PTSD is the result of repeated and prolonged trauma. I won't launch into a lengthy explanation, but if you're interested in reading more about this, here's a link with great info:
http://www.ptsd.va.gov/professional/PTSD-overview/complex-ptsd.asp. Maura's erratic behavior could absolutely be a result of C-PTSD. That would then leave the question of, what were the repeated traumas?
So what do I think happened to Maura? I'm not sure. But I do believe she left of her own accord and that she was trying to get away from her father. Forever. JMO of course. It seems to me that something happened "that weekend" and Maura simply couldn't take it anymore. carpanthers' points about the inconsistencies in FM's statements, especially regarding what actually happened at the hotel, raise a lot of concerns for me. I want to make it clear that I'm speculating, not accusing.
Did Maura succeed in escaping? I hope so. I hope that she caught a ride with someone after her accident, an innocent person who had no idea what they were getting involved in, that she got dropped off at some unknown point, and found her way to a new life. I hope she reads these posts and finds them somewhat entertaining. But I know it's also possible that a crime of opportunity occurred that night, which, if I'm right about my suspicions, would be the most heartbreaking and unfair conclusion I can imagine.
Sorry for all the redundancy & I hope this was clear and somewhat helpful.