I don't feel that it's pure speculation, Louise. We may just have to agree to disagree there. They've been dating since filming Rendition and thereabouts, and it's months and months since Reese's divorce became final, and yet there's not been one single pic as far as I know of events with them together which they attended - officially - as a couple.
All there is are some pap pics that are non of our business, to that I would agree....
Given the level of events they attend or are likely to attend on the basis of their Hollywood "status" and roles etc. it can't be a coincidence that they never appear together. Couples normally do go out together, when they have a chance to, - in Hollywood and in Real Boring Ordinary Life where I live - so it has to be deliberate on their part. And that to me is odd, when we're talking two unattached eligible adults. It's not as if they need sneak around and try to hide their relationship from the world.
Yes, it's none of my business, but nothing concerning anything Jake or others do off screen is my business, so this is not special in that regard.