Close-Knit Fandom
In high school I joined a Harry Potter fan forum and got my friend Chris to join. He hit it off with one of the admins, Sara, and got into a long distance relationship with her. Months later she came to visit Chris and to celebrate our entire group of friends went out to eat. It was there she met my other friend Bill and became fast friends with him.
Less than a month later Chris dumped her, and at that exact same time Bill had been kicked out of his house. So he moves in with Sara, they get married, she convinces him to go back to college, and now they got an adorable kid together. All because I wanted another guy to post with me about Harry Potter.
Story credit: Reddit / fluffywhiteduck