Welcome SA,
This problem is progressive and it seems that you are realizing this is happening pretty quickly. The good news is the bad things you are afraid of happening ( your wife's respect, a DUI etc) haven't happened -YET. If you continue on this path they will. Why not stop now before the damage is done? I wish I had the insight before my mistakes were made. You have everything to gain and nothing to lose by quitting now.
Stick around and keep reading and posting. We all understand where you are at.