dreaming about the same person

Since Sunday evening i’ve been dreaming about the same person every single time I sleep. Even when i have short naps in the afternoon, which i do so every day.
I did have feelings for this person years ago but I haven’t dreamt about her in nearly a year.
Nothing particular has happened and I don’t even think about her when i’m awake.
I don’t get it, does anyone have any theories? 😔💔