when measuring centuries a bit of give and take is fine.
It was after all a protracted team effort of subjugation and well, by today's standards, genocide.
Most nations would be a bit butt hurt about it or at the very least work to prevent it from happening again.
China was briefly an observer state to Warsaw Pact and then pretty quickly completely withdrew.
After sino-sovet split in the early 60s Sino-soviet relations did not really normalize until Gorbachev.