i agree, there are some folks that just do better in a controlled environment, with rules and a barrier to the outside world, and somebody that tells them when to go to bed at night. because left to their OWN devices, and left on their own to make their OWN decisions, they are epic failures.
your BF has exhibited a lot of this type of mindset.....AS LONG AS he is IN rehab, IN a treatment program, he does "fine" because it's all laid out FOR him, he's like a tourist on a guided bus trip......get up, eat breakfast, get on the bus, look at stuff - they will even TELL YOU what it is you should be LOOKING at - at end of day, get off bus, eat dinner, go to bed. next day, repeat.
only you can decide if this is enough for you....if putting your life on hold AGAIN, not having a true partner STILL, is really in your best interests.