You give condition internally
You bring the difference externally when you need to explain that negotiation has broken down.
Kalonzo plan A - remain Azimio - if Uhuru and then Raila see the sense in backing him.
Kalonzo Plan B - is either run alone or join Ruto.
I am sure single phone call to Muthama will fix maneno yake in Ruto camp
Fact that he give condition to Azimio show Kalonzo has more hate for Ruto than Raila love. Take that to bank.