Did Jason's actions make everyone happy though? Everything you say above that Molly did not consider about the children could equally be applied to Jason, and they were his children. He must have had some very powerful motivation to up sticks, sell his house and move half way across the world.
I agree...I think the tendancy to portray Molly as a monster is detrimental to the case. I can understand why Jason might decide to try a fresh start for him and the kids, at the end of the day, he was obviously devastated when he lost Mags and I'm sure the memories they shared in Limerick must have overwhelmed him at times. Right or wrong, whether she connived him or not, he decided to try a new life in America, with Molly and the kids, and it certainly, from outside appearances was relatively happy for large portions of their time there. I don't see how detracting from that life helps the case.
I would imagine living with someone who suffers from mental health issues would have had it's up's, aswell as down times. If Molly was being treated and responding well to her prescription, it is possible that they had a relatively happy home life for long spells of time. This would also have attributed to Jason's difficulty in walking away, as he would have seen the up/positive side of Molly. Human beings generally take people at face value, once you have seen the soft, kind, caring side of someone it is hard to walk away, even if that is suddenly overcome by a mean, nasty, vindictive side. Generally people always believe that a person WANTS to get back to being the nicer person.
It is possible that Molly's behaviour started to change slowly over time. It is far more complicated than her simply turning into an ogre and Jason choosing not to walk away. Even as supportive as his family are, he would have had to cope with the 'I told you so' brigade, that it had all failed. That is a hard realisation when you are the sole parent left to ensure the happiness of your children! I believe the financial worries that we have heard mention of are common in partner's who live with someone suffering from bi-polar, perhaps Molly was building to a manic phase and Jason was just overwhelmed...he doesn't seem to have been the personality who would walk away from someone who needed him. A manipulator would know how to exploit that 'weakness'.
Again, I think this case comes down to the overkill...hopefully there will be a date set today to move this forward for everyone!