I won't say that AJH is a complete innocent party here but I can see that he was really love her in the beginning. Because despite all of the "abuses" he received from her, I can still feel his affection right until this very moment in how the way he handles the situation. SJK's divorce lawsuit had steel underneath that said, "Accept it or else..." but AJH's I can only see his pity for her. He has no choice, stay with her and dies slowly OR run for his life.
Regarding GHS, I keep repeating myself here that she does have way bigger issues mentally. The chaos we see in public so far is only a tip of an iceberg. The one and only reason WHY she has no one beside her in this situation. There is a strong reason why she is clinging so strongly onto him. Most likely he is the last person standing beside her. AJH has friends, lawyer, agency even neighbors who speak up willingly on his behalf while her zero nada, not parent and sibs even her lawyer issued a statement that said they have no plan on doing anything on her behalf.