WAS/MLC spouse is working her way back to me

[InnerStrength]

I agree with Thumpered. You put all the cards on the table and take away the mystery of what you are up to, and when you mention "Not that I don't wish you came, but I think it is a good idea to spend some time apart", the effect it will have in reality is reminding her that you in fact did want her to come. Keep it short, be mysterious; you want her to be wondering about you while you are gone.