I agree. If you're constantly thinking of how the person is not perfect for you, it's probably because they're not. I've never heard of ROCD, but what I do know is that when it's right, you don't question it. When it's right, it's natural to have that feeling of "pinch me" and "is this for real"" but that's on the opposite end of the spectrum. So while you say you have the "perfect" relationship, it doesn't seem quite right that you're questioning it obsessively as you are. And if you're questioning your level of attraction? Then it must not fully be there. That's my two cents!