Selena Gomez's New Instagram Telling Justin Bieber She's Done?

Selena Gomez voluntarily checked herself into rehab back in January to better herself. Judging from her recent Instagram message, it seems as if she now has some advice for Justin Bieber. Keep reading for the scoop!

On May 18, Selena Gomez, 21, posted an Instagram pic which featured a pretty cryptic message about 'who you're going to be'. Could this message be directed to her ex, Justin Bieber? Do you think she is trying to tell him something?

Selena Gomez Posts Sad Quote On Instagram - Is It For Justin?

It is not secret that Selena has been trying to distance herself from Justin Bieber lately.

After her short stint in rehab, Selena has been all about positive vibes and becoming the best version of herself. Since her most recent split with Justin, Selena has been ignoring his calls and avoiding all contact with the troubled pop star.

On may 18, she posted a pic on Instagram which featured this life quote:

'You can't be who you're going to be and who you used to be at the same time.'

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Could this be Selena's way of trying to tell Justin he needs to let go of his bad boy past in order to become a better man? Is this the only way she will take him back?

Selena Will Only Reunite With Justin If He Proposes

Judging from her message on Instagram, it is clear that Selena thinks something needs to change before she can get back together with Justin. We have also been told that a proposal might help to reunite the two.

A source told HollywoodLife.com, 'He really needs to proves he can step up to the plate - like an engagement ring might do it'.

What do you think, HollywoodLifers? Should Justin propose? Let us know in the comments!

- Shira Benozilio More Selena Gomez News: Selena Gomez: Only Reuniting With Justin Bieber If He Proposed To Her Taylor Swift Encourages Selena Gomez To Write Justin Bieber Diss Songs Selena Gomez Blocked Justin Bieber's Phone Number To Keep Him Away