Billy was shocked when Mackenzie arrived at the Chancellor Estate just when he and Chloe were married. Jack welcomed Mac home. They then heard all the shouting from the other room and found Katherine and Jill engaged in a food fight — with the wedding cake! Nikki declared that Kay had fabulous news; Kay then announced that Brock is her son and "this thing" — meaning Jill — wasn't her daughter. Ouch. Brock brought Mac to see Kay, who was thrilled to have her granddaughter in town.... Nikki offered to show Murphy around his new home. "My whole trailer can fit in this room," he marveled.... Ashley and Jack discussed how Jill and Kay not being related affected Mac and Billy.... Colleen went to see how Billy was holding up. When he stepped away, Chloe asked why Colleen stepped in as maid of honor. "Moment of weakness," Coll replied. Colleen then informed Chloe that Mac had "many interesting stories" to tell.... Billy said hello to Mac, who noted that her timing was awful. She congratulated him on his wedding. "I almost forgot," he admitted. Yikes. Chloe came over and introduced Mac to Cordelia. Mac left to clean up. Chloe was sympathetic as she noted that Billy's world has changed a lot now that Jill isn't Kay's daughter. "I can't believe it," he sighed.

Nick came up to Sharon’s suite at the GCAC and found her sobbing hysterically. Sharon revealed that she bailed on being Chloe's maid of honor. Nick said that he found a disguised Phyllis being escorted away by hotel security. Sharon appreciated him taking her side, but urged Nick to leave. She didn't want him and Phyllis arguing over her. "I'm not going anywhere," Nick said and tried to understand why she was so upset. Sharon again asked him to leave her alone. He refused to go when she needed a friend. "I don't have a home, I don't have a job ... it's all so overwhelming," she cried. She reminded him that he has Phyllis now and should be with her, but Nick wanted to support Sharon. Nick promised to keep Phyllis away from her. Nick left the room and found Phyllis standing outside. "Here you are, outside of her room ... again," Phyllis said accusingly. Nick held her back and prevented Phyllis from going into Sharon's suite.

At the wedding, Kay enjoyed holding Delia. Cane apologized for not believing Kay's identity. Kay assured Cane and Billy that regardless of biology, they're still her grandsons.... Jill welcomed Mac, noting how Kay's announcement affected Mac and Billy. Mac thought it was a waste of time to dwell over how she lost Billy.... Chloe asked Esther what the deal was with Mac. Esther filled her in on how Mac and Billy wed and then learned that they were cousins, and had to have their marriage annulled. Chloe became alarmed at this. Esther assured Chloe that Billy wouldn't be with her if he didn't want to be. "I guess not," Chloe said, not convinced.... Billy went outside for some fresh air and ran into Jack. Billy lamented about everything that happened with Mac. Jack reminded him that it's been six years since he and Mac broke up and Delia's custody was at stake.

Inside, Cane and Chloe discussed Kay's return. Cane taunted her about marrying someone who turned out to not be about a Chancellor and didn't think Billy really loved her. Billy came in just then and suggested that he and Chloe leave. Chloe then threw — well, really handed — her bouquet to Kay. Awww. Billy fumbled when he called Kay "Grandma," but she insisted that he continue to call her that. Esther was disappointed that she wouldn't get to carry out a certain wedding tradition for Chloe. Later at home, Chloe and Billy discussed the "surprises" at the wedding. She questioned him about Mac and he said that he hadn't seen his ex in years. He didn't want to discuss Mac and was eager to enjoy a proper wedding night with his new bride. Chloe was more than willing.... Back at the Chancellor Estate, Cane introduced himself to Mac. They hoped Jill and Kay would make amends. Meanwhile, Jill told Kay that she would've given anything to get her mother back, but Kay wasn't her mother. "I feel like I wasted the last six years," Jill admitted. She didn't want to live with Kay and revealed that she's moving out. Kay was devastated.

At the wedding, Ashley questioned Jack about his marriage with Sharon. She suggested he let Sharon go, but he wasn't ready to do so.... Phyllis and Nick returned home to the tack house and continued to argue about Sharon. Nick reamed out Phyllis for skulking around in a disguise. "You did this to me," she yelled. "I am obsessive and jealous, with good reason." She then called Sharon a slut and explained that she has a witness. Nick was appalled that Phyllis went to Jimmy's to get evidence against Sharon. Phyllis reminded him that Sharon is also sleeping with Billy and is a thief. She accused him of putting Sharon on a pedestal. Nick insisted that he loves Phyllis. "You have to see this woman for who she is," Phyllis pressed regarding Sharon. "I know exactly who she is," Nick replied. "It's you who I am beginning to see for the first time." Nick then stormed out. Yikes.... Jack visited Sharon at the hotel. He filled her in on all the wedding drama. He then asked if he and Sharon could start over again. Sharon sadly presented him with divorce papers. "I'm so sorry, but this is the best thing," she explained.

Cane joined Jill at the GCAC; she admitted that being Kay's daughter never felt natural. "And now I know why," she said. Cane noted that just because they weren't family didn't mean that had to be enemies. "I think we were born to be enemies," Jill replied.... Nikki and Murphy tried to comfort Kay. Nikki reminded her friend that she needed to get her death certificate officially rescinded and her will made null and void. Kay thanked Nikki for helping her through everything.... Mac told Brock that what she and Billy had was a lifetime ago.... Jack went to the GCAC bar and ran into Jill and Cane. He taunted Jill about the Kay reveal. "Shove it," she retorted.... Kay and Murphy settled into the Chancellor Estate. "Home at last," Kay sighed as she happily fell into Murphy's arms.... Chloe awakened and found her bed empty. Turns out, Billy went to see Mac.