Kamilla's feedback:
So you have to develop your idea into something more specific, otherwise your zine will be lost in the ocean of many other similar things. For example, break your publication into sections of different relationship stages (first date, first kiss/living together or marriage/breakup or divorce).
Or, show different stages of life - early years, middle age, elderly love. Or maybe draw some interesting parallels, work in pairs as “partners”. These are just suggestions, you can think of something else.