Remember... Love works best when it is FREELY given. When the lover has the total freedom out of pure choice to come or go without pressure or rules or conditions. When there are rules and conditions it isn't as easy to give it freely. It can become like a job.
THAT is what will work the best. She has to feel total freedom to go. Then if and when she goes, she needs to "wonder" if she screwed up because you seem to be not only ok, but thriviing without her.
