You may have the causality the wrong way around here here: with Venezuela's oil revenues cratering and what remains of their economy after a decade of Chavismo spiraling rapidly downwards, it's unlikely they can afford to be Cuba's sugar daddy for much longer.
This is the correct answer. Venezuela is begging China for loans presently to delay an inevitable default. They were already in disaster mode before oil plunged. It's a smart move on Cuba's part to reconcile with the US.
