"The Perfect Mate" was a dreadful episode, not because of any mystery, suspense, or violence, but because it seemed like it could have been written by a teenage girl with a penchant for romance novels.
An ambassador arrives on board the Enterprise with valuable cargo. That cargo, after it is brought out of stasis prematurely by a couple of sneaky Ferengis who tricked their way onto the ship, tells the Captain that she is the gift for the Chancellor of a planet involved in peace negotiations with the ambassador's planet.
The woman will psychologically bond with her intended mate. Trouble is, she attempts to seduce every man she comes in contact with, which is why she was supposed to be kept in stasis until the wedding ceremony. The ambassador tells her to stay in her quarters and not to mingle. Good advice...but...
Dr. Crusher isn't too crazy about the idea as a woman being a gift for some man, which to her, makes the Enterprise like a transport for slave trading. Picard agrees and decides to talk to the woman, named Kamala, that she should be a free agent and be allowed to leave her quarters---but with a chaperon. Picard enlists Data for that task, who is immune to her charms.
And now the plot complication; the ambassador has a run-in with the Ferengi who are trying to bribe him into a purchase of the metamorph, AKA gift for the chancellor. The ambassador attempts to leave with the threat of telling the captain about their bribe. He is pulled back and is accidentally knocked unconscious, rendering him unable to perform the duties of the reconciliation ceremony.
Now, the captain must take his place and gain help from the metamorph who, surprise surprise, bonds with him instead.
The episode ends with the captain giving away the bride and seeing the ambassador, recovered from his injuries, off the ship.
During this nauseating 45 minute too long show, we are treated to dialogue about how wonderful Jean-Luc Picard is because he made Kamala realize how fulfilled she is now for having met him and that she learned about duty and responsibility from him and she will marry the chancellor for the good of her people. She has maintained her empathic abilities and will know how to please her new spouse but will retain the gifts and knowledge she learned from Picard.
I had to keep telling myself "easy stomach, easy" while watching this insipid monstrosity.