Five adults participated in the research; all were in heterosexual relationships with a partner who had experienced depression during the course of their relationship. (interpersona.psychopen.eu)
Your partner can likely tell anyway, according to a new study on heterosexual relationships. (livescience.com)
As for your broader question about how gay and heterosexual relationships differ, well, that's a whole other story and we will tackle that in a another article. (scienceofrelationships.com)