"well I would rather you stay here and work on the M with me, but most of all I want you to be happy and if you feel that leaving is what will make you happy then I support your decision and will help in whatever way I can."
Hmmm. Would the above be okay to say to her before she moves out? That is actually kinda how I feel. The first part seems like it would be backsliding on the distancing a bit. My gut tells me she would appreciate hearing it though.