To be honest, I think she's only trying to make things right, knowing that the « Selfish » fan promotion was a reaction to the confidences in her book about the abor**on and her relationship with him. She now sees the real-life impacts of her declarations (even though it was right for her to do so). And to be fair, she never put the blame on Justin, but her fans did.
And if she decides to stop releasing music, our best way to encourage her to come back is by listening to her music and send her positive vibes. It can be stressful for her to come back, after all she’s been through, so the more we interfere and bring her stress, lesser are the chances of hearing her singing again.