It will work out... trust me and all the great yt people that have great advise.
I think the main thing now is to keep her safe, a xpen would be great (I found they are less expensive from toys r us then dog places- same ones just different pictures on box) and try to not let you fear spread to you alpha dog
That was a very very nice present, maybe not thought out too well but the heart was there.... you must have given lots of indications you wanted another and I guess this little gal was meant to be yours --good luck xo