Hey I work in a detox facility and it is very common for people to want to leave throughout their stay. It’s a lot to process emotionally and physically.
Honestly treatment alone isn’t enough tho. I highly encourage people to attend a sober living house as well. The more “step down” you do the better chance you have at being sucsessful.
Have you considered go to al anon or nar anon so you have support for yourself? I know I put my family thru hell when I was using and especially thru relapses and they needed their own support. It also helped them learn to set boundaries and not enable me (like tough love instead of always bailing me out) as hard as it was them refusing to let me come home even after completing inpatient is what probably saved my life