Someone correct me if I am wrong but wasn't Nora the woman of whom Ralph had the longest relationship with and was even a stabilising influence in his life?
Yes. The first Pillstream was when Ralph was with Nora but I do know that Ralph went absolutely off the rails, jumping from relationship to relationship, after he dumped Nora for Adezero, no thanks to Masterson. I see Masterson as the catalyst since he was yelling in Ralph's ear for him to cheat on Nora, arranged for Faith to meet up with Ralph, fulfill that threesome fantasy and so on.
I hope we can at least agree that Ralph burning bridges with Masterson, at least from Ralph's POV, is a net plus for him and one of the very few bridges he ought to have burnt.
I do hope Ralph will keep up his promise to hound Masterson like how Masterson hounded Maddox though it is a forlorn hope.