So there is definately something going on between VER and the RB team behind the screens. Something is bothering Max but he doesn't want to talk about it in public.
Here is the post race interview with Checo (almost embarrassing, I feel for him):
And this is the post race interview with Max basically telling that something has been bothering him
I hope they sort things out, F1 drivers can hold grudges for years, plenty of examples of that, sometimes with teams almost getting destroyed by it...
Then again, Sai also didn't gave up his place for LEC for 'the championship' despite LEC begging for it....but that's not 100% comparable.