The window of opportunity for the legal marriage opens after the governor of the (unnamed) state in which the series is set declares same-sex marriage legal, only to close when the state legislature passes a law to outlaw it. Governors in the United States do not have the authority to make such legal declarations. Even if they did, the bill passed by the state legislature would require the governor's signature to become law (or else be passed over the governor's veto, which is not mentioned in dialogue).