Have you been too rehab?

have you ever been too rehab? for drinking? my friend is doing her nut!! her fellar ****** off nottingham too rehab for 18mnth without a word. weeks later he told her..selfish **** ..what are the procedures? he gets 1 phone call a wk 2 the kids but cant communicate with his partner, but still wants too maintain a relationship. does he get an allowance? should he be allowed visiting? what happens exactly?