The romantic history of Lwaxana Troi was well-documented on Star Trek: Deep Space Nine where she married the titular space station's head of security, Constable Odo. Deep Space Nine's proximity to the wormhole led to several diplomatic missions to the Gamma Quadrant, attracting the likes of Betazoid ambassador Lwaxana Troi (Majel Barrett), who formed an instant, one-sided attraction to Odo (Rene Auberjonois). As with Jean-Luc Picard before him, Odo had to deal with Lwaxana's amorous intentions on several visits to the station, however, there was clearly a mutual friendship between them.
It was this friendship that led to Odo and Lwaxana getting married in DS9 season 4, episode 21 "The Muse." DS9 season 4 introduced Worf and began to amp up the Dominion War, so it's unsurprising that Odo and Lwaxana's marriage gets forgotten, especially as the character is mostly associated with TNG. "The Muse" was the final on-screen Star Trek appearance for Lwaxana Troi, and the final live-action appearance of Majel Barrett. This final appearance formed a touching ending to the story of Odo and Lwaxana and also set up DS9's love story between the Changeling and Major Kira.
Odo’s Relationship, Wedding & Divorce To Lwaxana Troi Explained
Lwaxana Troi arrived on DS9 as part of a fact-finding mission into the Gamma Quadrant. Almost immediately after arriving at the station, she was robbed when a precious brooch was stolen in DS9's Ferengi-owned Quark's Bar. The thief was apprehended, and Odo returned the jewelry to Lwaxana, who was immediately attracted to the shape-shifting security officer. When the two were trapped in a turbo lift together, they formed an intimate bond when Odo became the first person to see Lwaxana without a wig, and she used her skirt as a vessel in which Odo's gelatinous state could regenerate.
It was this special bond that led Lwaxana to seek Odo's help with a delicate matter involving her unborn son and her new husband. As a Tavnian, he's from a strict culture that splits the two sexes at birth, with fathers raising sons and mothers raising daughters. The culture of these Star Trek: DS9 aliens meant Lwaxana would have no part in her child's life until they were 16 years old. Odo agreed to stage a wedding to Lwaxana as, according to Tavnian culture, the unborn child would become his responsibility. Due to Odo and Lwaxana's history together, her husband was convinced of their love for each other and approved of the marriage. Once the Tavnians departed the station, Lwaxana thanked Odo and returned to Betazed to prepare to give birth to her son.
Odo’s True Love Was Major Kira
Odo and Lwaxana's marriage was a ruse to allow the latter to raise her son, free from Tavnian tradition. However, Lwaxana did have an impact on Odo and made him more comfortable with who he was. She also realized that Odo was really in love with DS9's Major Kira Nerys, and wished him luck. The two had known each other since the station was under Cardassian control, and over the years Odo had developed romantic feelings for her.
Odo took the romantic advice of holographic lounge singer Vic Fontaine (James Darren) in season 6, episode 20, "His Way" and finally confessed his love for Kira. Odo and Kira remained in a relationship, weathering the storms of the Dominion War and the morphogenic virus used against Odo and his fellow Changelings. In the Star Trek: Deep Space Nine finale, Odo left his true love behind in search of a higher purpose, healing the Changelings and educating them on the positives of the solid lifeforms, presumably inspired by the likes of Kira and Lwaxana.