Dude she is an ex.....Leave it that way.
If you go over she will slam bam you. You will then be back together.
She will keep you around because you are good enough for now even though she has already expressed that you cannot provide the future she envisions.
She will one day find someone who can.
She will leave you for that someone.
You will be hurt because you will have at that point made the changes to "Make her future seem possible with you".
Maybe there's no peace in this world, for us or for anyone else, I do not know. But I do know that, as long as we live, we must remain true to ourselves.