So, you're thinking - was he or wasn't he? You asked and he said no. But, you feel differently, correct? Regardless of what he did or didn't do, you're back in the way of the codie.
Addicts and alcoholics relapse after years of sobriety. Every day. Why? Because they're addicts. Since you've been here for a while, you know there's nothing you can do to make him stop.
So, what are your next steps?