I think it is great you have the support of your fiance. That's important!!
I agree that opiate withdrawal isn't pleasant but it's doable!!
Hot baths felt sooooo good. I detoxed from methadone and it was really bad for a long time. Yours won't be anything like that.
Drink plenty of fluids, eat as healthy as possible, get plenty of rest and keep your mind busy!!=)
You can do this!!=)