It depends. If the portrayal of the yandere girlfriend is done in an interesting and nuanced way, it could be appealing. But if it's overly stereotypical or one-dimensional, then no.
Most real - life 'yandere girlfriend' stories are not as extreme. Often, what seems like yandere behavior can be a result of insecurities. A girl may have had bad experiences in past relationships or might have self - esteem issues. So, she acts overly protective or jealous. However, it's not the same as the full - blown, often dangerous yandere concept from fictional works.
Communication is key. Sit down and talk to her about how her behavior makes you feel. Let her know that her excessive jealousy or possessiveness is not healthy for the relationship.
In yandere x reader fanfics, yanderes usually display intense emotions. Their love for the reader is not the normal kind; it's more of an obsessive love. They may have a dual personality where they can be extremely sweet and loving one moment, but if they feel threatened in their relationship with the reader, they can turn very dangerous and menacing.
Yandere characters in these novels are often extremely possessive. They see the object of their affection as solely belonging to them. For example, they might get angry or even violent if someone else shows interest in their beloved.
One of the well - known yandere characters is Yuno Gasai from 'Future Diary'. She is extremely possessive of her love interest, Yukiteru Amano. Yuno is willing to do anything, including murdering others, to ensure that she is the only one in Yukiteru's life.
A 'yandere fanfic' is a type of fan - created story. 'Yandere' is a Japanese term. In these fanfics, the characters often display extreme, sometimes obsessive and possessive love or devotion, which can lead to rather intense and often dark or unhinged behavior. It's a popular genre in some fan communities, especially those related to anime and manga.
A yandere novel is characterized by having a love-crazed character. Their love is so intense and obsessive that it borders on insanity. This can lead to all sorts of crazy plot twists and keeps readers on the edge of their seats.