The disclosure and expression of trans and non-binary gender identities introduce unique complexities and stressors to romantic relationships, affecting each partner and the relationship itself in distinct ways. The study aims to describe romantic relationship experiences regarding the disclosure and expression of trans and non-binary gender identities from the perspectives of trans and non-binary individuals from Chile. Interviews were conducted with 12 participants - six trans individuals and six non-binary individuals. The experiences of romantic relationships surrounding the disclosure and expression of trans and non-binary gender identities are diverse. Three types of experiences were identified: couples who co-transition, those who provide support, and those who reject. A single romantic relationship may likely move between these possibilities over time, depending on the composition and dynamics of the relationship, as well as familial and social factors. Couples reorganize in response to the processes of trans and non-binary gender identity disclosure and expression. These relationships can uniquely contribute to affirming and validating non-normative identity experiences.