At Bill's house, Poppy checked the time. Luna and R.J. entered, and R.J. invited Poppy to go with them to Eric's house. Poppy preferred to wait for Bill. R.J. asked where Bill was. Feigning a happy demeanor, Poppy revealed that Bill was with Katie. Luna saw through it and tried to reassure her mother that she had nothing to worry about. R.J. and Luna took off, and Poppy checked her watch again, wondering why Bill wasn't home.

In the design office, Katie claimed she wasn't trying to come off as insecure. Katie was trying to wrap her head around Bill having a daughter with Poppy, who gave Katie bad vibes. Bill wondered what that meant. Katie replied that she didn't want him taken advantage of.

Bill believed Katie felt that way because he was the father of their son, but Katie said she'd always wanted what was best for him. Bill uttered that he'd thought for a long time that reuniting their family had been what was best. Katie knew Bill had a lot of guilt about the past, but in Bill, she saw a strong, caring man who could make one feel like the only person in the world.

Bill replied that he'd thought he was bullheaded, arrogant, and aggressive. Bill recognized that he'd grown up a bit, and he owed it mostly to Katie, the best thing that had ever happened to him. Tearfully, he called her the love of his life. He got that life went on, and she'd had a right to move on. Though it had taken him a while, he'd finally moved on to his next chapter.

Katie asked Bill to say it again. He stated that life went on. "You know what I mean," she uttered, taking his hand. Bill stated that she was the love of his life. She was his Katie. Bill apologized, saying he felt as if he was sending her mixed signals, but he'd always love her. She concluded that he was moving on with Luna and Poppy. Bill stated that he'd always hold what he and Katie had shared in his heart, and they'd had wonderful memories.

Flashbacks played of Bill and Katie throughout the years. Bill stated that they'd had a wonderful life and family, and he'd often wondered what could have been if he hadn't screwed things up. Katie said she did, too. Bill asked what was going on with "what's his name." Katie replied that she and Carter were better off as friends, and she couldn't see herself moving on with any man at that point. She wished Bill would think about what he said before he said it.

Bill asked what that meant, and Katie indicated that it was hurtful of him to say she was the love of his life when he didn't mean it. He insisted that he did mean it and told her not to doubt his love for her. Bill and Katie hugged. Just then, Poppy opened the door and saw the embrace.

In Eric's office, Paris was irate that Hope had made a play for Paris' fiancé. Hope asked if Paris really thought Thomas had moved on from what he'd had with Hope that fast. Hope claimed to be concerned for Paris and Thomas because it was happening too fast. Hope said she'd been the only woman in Thomas' life for years, but Paris said it wasn't the case anymore.

Paris asked if Hope was trying to say that it was a matter of time before Thomas went back to Hope. Hope replied that Paris should be careful because Thomas was very much a one-woman man. Paris didn't appreciate the warning when Hope was the one making moves on Thomas.

Hope claimed she was being honest. Paris revealed that she and Thomas had built their relationship on honesty at a deep level, and she said Hope knew nothing about that or Paris' relationship with Douglas. Paris said that it stung Hope that Douglas had embraced Paris.

Paris said she was sensitive to it, but she thought Hope acted as if Thomas could never get over Hope. Paris asserted that Thomas loved her with his eyes and touch. She said that in bed, she and Thomas daydreamed about their home and future children, which was something Hope and Thomas had never had. Paris stated that Thomas had left Hope in the past. It was time for Hope to respect Thomas and Paris' engagement and leave Paris' fiancé alone.

Paris didn't want drama and got how hard it was for Hope. Hope asked if Paris got how much Hope and Thomas had loved each other. Paris replied that Hope hadn't wanted to get married; that was okay, but it wasn't what Thomas had wanted, so he'd moved on. Paris repeated that Thomas was a one-woman man. "I am that woman now," Paris concluded, and she left.

At Eric's house, Carter, Eric, and Donna spoke with Thomas, and the men congratulated Thomas on his engagement. Ridge and Brooke arrived for the Fourth of July celebration. Steffy, Finn, and the kids were off doing family things, and Ridge said they might make it later. Ridge asked where Thomas' bride-to-be was. Deciding to find out, Thomas checked his phone.

Later, R.J. and Luna arrived, and R.J. told Thomas that he'd left big shoes to fill with HFTF. Thomas replied that his brother was doing just fine. R.J. and Luna said they were happy for Thomas, and R.J. wondered where Thomas' fiancée was. Thomas said it was a good question.

Later, Thomas was hugging Paris, and Eric toasted the woman of the hour. Ridge called Paris his future daughter-in-law. As Thomas got Paris a drink, Carter complimented her and her ring, saying that Thomas was a lucky guy.

Paris joined Thomas by the drinks. He said he'd thought about sending Charlie to look for her. She asked if he'd missed her. "Always," he murmured against her lips. She said she'd had some loose ends to tie up. He hoped she'd tied it all up because he didn't want to let her out of his sight for the rest of the night. Paris and Thomas giggled and canoodled. Behind them, Hope opened the front door and witnessed the kiss.

Later, Brooke saw Hope and Thomas glance at each other, and Brooke asked if Hope was okay. Eric interrupted, getting everyone's attention to thank them for attending the party. Ridge announced that his son was home, and he toasted to his son's engagement.

Thomas assumed his return and engagement had surprised some. He explained that he'd been out of sorts when he'd arrived at International, and he'd never expected to fall in love. "But that is exactly what happened," he stated. He said he and Paris had reconnected and helped each other. He stated that she meant the world to him, and he loved her. Paris replied in kind and said she couldn't wait to be married.

Thomas noted that Eric and Stephanie had made the place a home of love and family. He and Paris had helped each other through problems and issues and had helped each other move past "that point." He asked if he and Paris could get married in Eric's home.

"I guess we're about to have another wedding!" Eric exclaimed and toasted the couple. Hope's eyes widened, and she backed into the foyer as the others celebrated. A pop like a cork sounded, and confetti fell through the air. Hope looked over and saw Thomas and Paris kissing.

• Sheila comes across something shocking at Il Giardino

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• Deacon worries about Hollis' behavior

• Ridge assures Brooke that Hope will be fine