as far as her changing her mind to suit her needs, put your foot down and dont' allow anymore waffling, nail down the visitation rights soon (do not forget every holiday, spring/winder vacation, floating holidays, etc, right down EVERYthing) I'm assuming you'll have joint custody, that entitles you to decide who cares for your children.
Be not afraid...I will repay you for the years the locusts have eaten Joel2
30something 2kids survivor of S, MLC, A, D I have peace in my heart, at last.