What kind of catharsis are you suggesting happen?
A process similar to the resolution of arguments in a marriage.
"My way or the highway" doesn't resolve disagreements when there is a significant divide. Hearing one another's fundamental concerns and finding common ground to move forward together can resolve vast divides.
If Trump is the negotiator he claims, he knows that. Ultimately, he'll be "married" to the Speaker. It's in his interest to bridge the divide.