Feel good ending
Very happy ending for Sean and Henry. They are now free from that horrible woman who cared more about her boyfriend than either of them.
This was Drill's true mission and he believed in it so much that he sacrificed himself for Sean and Henry's well being.
To an extent Drill even gave that scumbag Wes a happy ending as well. Wes was always a sex addict who hated the burden of a wife and kid so Drill helped him be rid of that burden by taking care of Lena and Minx.
Drill is a misunderstood hero who saved the lives of Sean and Henry and freed Wes from the evil shackles of fatherhood and marriage so he can go back to the orgy that is his life. I'm sure Wes will enjoy many more happy endings now that he is a free man.
I will always the remember the hero that was Drill. Your sacrifice was not in vain. Drill was the hero we deserved but not the one we need right now.