Is participation in the near occasion of mortal sin and openness to the possibility of sin, mortal itself?

For example: 1. An alcoholic decides to go to an event with an open bar (participates in near occasion of sin). 2. The alcoholic decides that he will not directly go to the bar and request a drink (avoids clear mortal sin). 3. The alcoholic decides that if anyone offers him a drink, he will accept it (openness to the possibility of sin). 4. No one ever offers him a drink and the alcoholic remains sober the entire night (avoidance of clear mortal sin). It seems to me that there is something mortally wrong with putting #1 and #3 together despite #2 and the end result being #4. However, looking at the definition of mortal sin Im running into a problem: 1. Its subject matter must be grave. 2. It must be **committed** with full knowledge (and awareness) of the sinful action and the gravity of the offense. 3. It must be **committed** with deliberate and complete consent The above example checks all three boxes but the mortally sinful act was never actually **committed**.