I don’t really get the Intel/Micron relationship. Much later, Intel collaborated with Micron on their NVME tech (3D Xpoint/optane), but in the end they gave up

I don’t really get the Intel/Micron relationship. Much later, Intel collaborated with Micron on their NVME tech (3D Xpoint/optane), but in the end they gave up the product line to Micron, right? Companies don’t have friends. But they seem quite cozy?