I wonder if Sean is going to the methadone clinic. Many of them have in-house counseling -- some of it's really good and some of it isn't. It depends on location as far as what's offered, the costs, if insurance covers it, etc. $17 a day sounds about right for methadone. Most of the time methadone is a daily, in-house treatment, taken in front of a nurse. Once the patient proves they're responsible (clean drug screens are the main thing, but maybe working the program, etc), they can take home weekend doses, then work up to taking home maybe three days, then 1 week, then 2 weeks worth, even up to a month. Again, it really depends on the state (though I think there are some fed guidelines).
Methadone can be a godsend or it can be a shitty substitute. It really depends on so many factors.
The way they're describing things, it really sounds like that's what he's doing. If he can get clean and get his shit together (and he and Jade can learn to communicate rather than argue), more power to them.