By interesting papers you mean "paper" singular and it was conducted at a science center with no control.
> Target participants were 170 male-female couples (aged between 18 and 73, mean = 35.8, SD = 11.3). All couples reported to be heterosexual. We collected data and images from 333 couples who were visitors to a science exhibition centre and who responded positively to a face-to-face invitation to participate.
That is just one paper about one facet of the issue.
"Although this general idea and the research looking into it is still in its infancy, the data that do exist suggest that the pill might influence who you’re attracted to, the dynamics of your relationships, the quality of your sex life, how jealous you are, how you respond to your partner’s face, how sexy you are to others, and your likelihood of getting a divorce."
> Target participants were 170 male-female couples (aged between 18 and 73, mean = 35.8, SD = 11.3). All couples reported to be heterosexual. We collected data and images from 333 couples who were visitors to a science exhibition centre and who responded positively to a face-to-face invitation to participate.