Why exactly is Goro so adamant about holding back? Is he still expecting to find out something huge, about the mythological foxes, that will absolutely make him reject the marriage? We already know he has fallen for Kogane, and he knows it himself, so there has to be a concrete reason that isn't about Kogane specifically but either about the inter-species marriage thing or about Kogane's background. There was one murderous stalker, which, I admit, is pretty significant, but that's all in the past already, in a very permanent manner, so one wouldn't normally think such a thing would be repeated. But was it still too much for him?
If this is indeed his reasoning, I suppose I can respect it. If he doesn't touch Kogane, cutting ties with her due to external factors might be viewed in a more honourable light. Nobody could claim he was only using her for a while and then kicking her out. However, I can't respect taking too much time to make a decision when living with someone as cute and good as Kogane.