Here is the truth behind that introductory scenario from the Mentzer Basic Red Box of D&D and the two notable NPC's of that adventure; Aleena and Bargle. The young warrior from that introductory solo adventure is meant to be inspired and traumatized by that dark moment when Aleena was slain and Bargle escaped. You were meant to be driven on until you reach name level, then discovering that clerics who can bring the dead back to life gives you further dedication to reach the companion level adventures, find another cleric who can cast "Raise Dead Fully" then bring your lost true (but all tragically too brief) love back from the dead.
Then you marry her and share the domionion you have built up with her. Then you discover that you have matured and she has not. She goes out with "friends" while your stuck defending the keep with the same old henchmen you see every day. Soon you discover the castellan's nickers where they don't belong. And by the time your 25th level your "companion" can no longer take your suspicious ways and files a plea with both the Grand-Duke of the land and the head Patriarch of the church asking release from her marriage vows. You come back from having to slay the 8th dragon who decided to abduct maidens from your villages this year to discover that she gets full title to the Keep and Dominion, half of the noble treasury, your stationary followers, and requires a monthly maintenance so steep you are driven on ever more mythic quests seeking great fortunes or final release from her.
You then spend those levels when you should have been master of all trying to find that final path of escape from Aleena's greedy clutches. Only after trials so amazing and legendary that skalds and minstrels will seek songs of it for centuries to come are you granted the escape of another plane of existence and removal of your body from this world forever. Your a bottom of the barrel immortal, but you are free of her.
Turns out Bargle wasn't bad, he was just trying to save us grief.