Hope rant

I know this has been touched on before but I just have to say, Hope's behavior doesn't make sense.  It's total plot driving story here.  The Hope I have come to know over the years would never have moved in with Victor, kept Bo's daughter from him or been the least bit threatened by Carly.  As for Bo, why can't he work with Hope?  Why can't he get her to help Carly too instead of alienating her?  After all they have been through, the death of Zach and all of Stefano's manipulations I just don't buy that this incident with the kidnapping would drive them apart.  It's like they are 2 completely different characters.