In Game of Thrones, at least twice, a character has had gratitude for horrible events in their life because they say it has lead them to meet their soul mate.
In one episode Grey Worm, a soldier, says something along the lines of, "...if I wasn't an unsullied...I wouldn't have met you [girl he likes]". (season 4? episode ?)
In another episode a sell sword says something along the lines of, "My mother sold me to the fighting pits where I gained wealth, bought my own freedom and then met you [girl he likes]" (season 5 episode 1)
To summarize, it sounds like they are saying, "The horrible things I went through led me to this good thing in my life and my exquisite character."
It almost sounds like it justifies or glamorizes the existence of the horrible things or the experience of going through it. And that the horrible thing caused the meeting of the two people. Or that horrible things made someone a better person.
We have no evidence that they are a better person or a worse person or that they would not have met anyway without the experience because we only see one timeline. According to the evidence, many times horrific events lead to PTSD and anxiety disorders.
Are there fallacies in these character's reasoning?