somehow i have a feeling that if Chloe/Koharu does "Get" Grookey, it will only be temporary to give to Gou/Goh. She may have been its "original trainer" and intended to either give it to Goh or it got away from her to see Goh early. Or maybe it gets along better with Goh than Chloe. I just have a feeling this may happen given the summary mentions Yamper helping the group find Grookeys trainer.