Background: Same-sex couples sued their state agencies because the states had banned the marriages. They were very unhappy with this and argued with it.
Obergefell's side: Obergefell said that “all Americans have a constitutional right to, define and express themselves identity” and he thought it was not right to single out gay people. He wanted the same-sex marriages.
Hodges' side: He thought same sex marriage was unconstitutional and did not want them.
Supreme Court's decision: That the same sex marriages are constitutional and they are allowed.
Change in law: The Supreme Court decision that same-sex marriages ARE constitutional forced states that had outlawed gay marriages to withdraw those laws.
Change in culture: Same-sex marriages are now allowed for anyone in the U.S.