Sometimes when you're with an active alcoholic or a dry one not in recovery, or one with a combination of alcohol and other psychological issues, it can make you feel like you're crazy and getting crazier and sometimes this is their desired affect..eg. 'gaslighting'.
Maybe your HP wanted you to have a reprieve from the insanity for a while so you can clear your head. And congratulations for deciding to go about your day and leave his mummy in denial to babysit him, the grown ass man (I love that...saw it on here somewhere and used it twice now). Continue to enjoy the peace!