In 2004, Massachusetts became the first state to legalize same-sex marriage. Eleven years later, the U.S. Supreme Court ruled in favor of legalizing same-sex marriage nationwide. Gaining the right to marry helped lesbian, gay, bisexual and queer (LGBQ) people feel included and accepted in society—but also contributed to a weakening of the LGBQ community as a result, according to a new study from the University of Notre Dame.