Short answers, pulled from the story.
Diane Vaughan proposed an uncoupling theory in 1976 that describes a precise moment when partners knew the relationship was over. Her theory notes that everything went dead inside followed by a transition period where one partner unconsciously knows the end is coming but holds on for years.
Knapp's relational development model describes two separate phases of relationships including coming together and coming apart. The coming apart phase begins with differentiation when individuals notice differences that seem unnegotiable or place pressure on the bond before leading to circumscribing and stagnation.
Individuals who had just recently experienced the dissolution of a romantic relationship reported several symptoms of acute psychological distress including flashback and intrusive memories associated with their partner often triggered by important dates linked to either the relationship or the breakup itself. These symptoms resulted in significantly lower levels of self-esteem among those undergoing romantic relationship dissolution.
Jessica Kansky and Joseph P. Allen conducted a study that followed 160 twenty to twenty-five-year-olds observing their romantic and close friend relationships over time. One finding proved positive in the long run for several individuals especially if they knew the reasons why the relationship ended as stress pushed them beyond complacency.
The technologically advanced society means much of people's lives occur online through dating apps or social media platforms like Instagram or Facebook. Constant wide range accessibility provided by technology leads to plethora of issues resulting in breakups including multiple partners using online platforms unaware of each other.
According to researchers Lahti and Kolehmainen studies show LGBTQ couples tend to feel pressured by society to maintain long monogamous and healthy relationships despite internal struggles. Unique issues arise out of LGBTQ relationship dissolutions involving children becoming legally confusing according to researchers Goldberg and Allen.