They're popular because it's a very relatable concept. Many people have had a crush on someone and felt that sense of obsession at some point. It's also a bit of a fantasy for some, seeing someone be so dedicated to another person.
Well, often in these stories, the guy starts as a bit of a stalker - not in a creepy way though. He'll find out her daily routine and 'accidentally' bump into her a lot. Then there's the plot where he saves the girl from some sort of trouble, which makes her see him in a new light. Also, there's the scenario where the guy writes her love letters or poems to express his obsession in a more romantic way.
Perhaps the obsessed guy has a change of heart. He realizes his actions are wrong and lets the girl go. But this ending often comes with a complex set of emotions and consequences for both characters as they try to make sense of what has happened.
Often, the theme of rescue is present. It could be the girl trying to rescue herself or her friends and family attempting to rescue her. Also, there can be a theme of psychological manipulation as the obsessed guy may use various tactics to control the girl.
One possible story could be in a school setting. There's a girl who is a bit of a prankster. She sees a guy who has been teasing her friend. So, as a form of revenge, she gives him a wedgie during recess. The guy is really embarrassed and runs off to fix his underwear. It was a silly but effective way for her to get back at him for his mean behavior.
Self - defense is also common. If the guy is attacking the girl, she may have no choice but to fight back and end up killing him to protect herself. For example, in cases of domestic abuse, the girl may finally snap after years of being mistreated.
One story could be that the shy guy first noticed the girl in a library. He was too shy to approach her directly. So, he left a little note on the table she was sitting at, with a simple 'Hello, you seem really interesting.' The girl found it cute and later they started chatting through small notes left at that same table. Eventually, they got to know each other better and started dating.
There was a guy named Tom. He was an ordinary boy until he entered an old, mysterious house. After leaving the house, he noticed strange changes. His voice became softer, his body more slender. As the days passed, he fully transformed into a girl. This transformation led him to discover a whole new world of emotions and social interactions that he was previously unaware of.
One embarrasing story could be at a school dance. A guy was trying to ask a girl to dance. He walked up to her, tripped over his own feet right in front of her, and then instead of asking her to dance, he just mumbled an apology and ran away.
A long - term relationship between a Sag guy and a Virgo girl is achievable. They have to work on their differences though. The Sagittarius guy's optimism can be a great asset in the relationship, and the Virgo girl's practicality can keep them grounded. They need to appreciate each other's qualities. For example, the Virgo girl might not always be excited about the Sag guy's wild ideas at first, but if she sees the potential in them and supports him while also guiding him with her practical sense, and the Sag guy respects her need for routine and order, they can build a strong and lasting relationship.