I think so too. But on the other hand, I feel like "I love you" just isn't enough for them to describe their feelings—kind of like when Jake said he "wants to spend his life with Shin." And I’m a sucker for a clingy Jake (deep down, he’s a total cuddler, I’m sure of it, lol).
They didn’t state their relationship by words but they sure know it by heart.. I feel like jake gonna say it but change his mind somehow