I agree with what @Hermione said. I would never want anything from Billie to be forced or un-fun for him. That's something I completely understand and if he's not wanting to be on Instagram then it's good he's not. I know none of them owe us anything and we're privileged to get the little interaction that we do, but that doesn't change at all how I feel. It's true that in the past we got nothing in between albums. Since we experienced that connection with them through social media like Instagram, it's really difficult to imagine that not being a thing. It feels kind of selfish and almost pathetic to have such a hole just because Billie's not on Instagram, but that's the reality for me right now because it is something that did so much for me. To have him come back would be a gift.
On a different note, that is a spectacularly beautiful guitar! I can't wait to see him play it.