No, I don't think that Autumn is the one who's in denial. She's handling things pretty well. However, she was advised to check out AlAnon; no point in doing that unless you believe your h is an alkie. And Autumn does. Why not call something what it really is? Why play silly label games? It just adds a layer of B.S. or sanitizes an issue. We're all adults here, right? We can handle "the truth," right? And the truth is: alcohol is part of her marital problem. Making stupid decisions while under the influence is how affairs can start as well.
