When Jack got angry with Bernard and threw that bottle, it didn´t make any sense. Well, not to me at least. Why did he get so angry all of the sudden? He seems to have some issues in keeping his temper in control. That too could use few sessions with a therapist.
Bernard starting a new job could be a good thing for them both. They could start again in a new, neutral place. No memories of Randy or things that got wrong with them. I still would like to see them together, but especially Jack needs to do a lot of work to get their relationship healthy and loving.