Have you thought at all about where your boundaries are here? I think I remember that at some point before he came back your boundary was that you wouldn't feel comfortable taking him back until you'd seen extended sobriety? And then after he got back and it turned out he was lying about being sober, your boundary was that you would support him so long as he was making an effort to get sober? I may be remembering wrong, but just curious if you have limits on what kinds of behavior you're willing to accept...