Thomas and Becca, who began dating onBachelor in Paradise's seventh season last summer, have been traveling together for the "Bachelor Live On Stage" tour and seemingly falling more in love with each other every day.
"As far as planning, has [Tia Booth's engagement] given me any ideas? Yeah. I'm very aware [Becca] wants an elongated cushion [cut diamond]. I'm very aware she wants it to be very large," Thomas revealed during a recent appearance on the "Click Bait with Bachelor Nation" podcast.
"Am I aware if I have one in a safety lockbox in my bedroom? I don't know, time will tell. We'll have to find that one out later on this year."
Thomas confirmed of the pending proposal, "I don't have a full plan yet, but I know it's going to be small and intimate."
"There will be a camera. I'll have a photographer, but the last thing that I want for Becca is to have another grand spectacle."
Becca previously got engaged at the end of her The Bachelorette season in 2018 to Garrett Yrigoyen but the couple announced their split in September 2020 after two years together.
"I want this to be a special moment just for us," Thomas continued on the podcast. "We want to sort of just be able to enjoy that moment the way that we want to. I think that's one of the biggest blessings we've had in our relationship."
Thomas acknowledged how there is "pressure" on couples who come out of The Bachelor franchise "to be a certain way."
"The people who have the most happiness are the ones who say, 'I understand that's there, but it's not going to dictate our lives, and we're going to be the people who we are and then go on from there,'" Thomas said.
Thomas also told Tia, Joe Amabile and Natasha Parker on the podcast how he and Becca will be traveling to Hawaii after the "Bachelor Live On Stage" tour ends for a wedding and then head to Becca's hometown in Minnesota to visit with her sister and mother.
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"It's something, before we really settle down, there's a bucket list thing of items that we want to do -- and living in a big city for a little bit is one of those... That's in the talks. It's in the talks."
Back in early November 2021, Thomas and Becca were not living together -- as Becca lived in Los Angeles and Thomas had a place in San Diego -- but Thomas told Hollywood Life that he was pretty sold on marrying Becca because they were spending a lot of time together and had "the most healthy, normal relationship" at the time.
During an October episode of the "Talking It Out with Bachelor Nation" podcast hosted by The Bachelorette alums Mike Johnson and Bryan Abasolo, Becca revealed how Thomas has sent her "multiple text messages" asking about engagement rings.
"It's something we've talked about," Thomas disclosed during the joint interview. "I mean, I don't want to spend my life with anybody else... I wouldn't want to wake up next to anybody else."
On Bachelor in Paradise's seventh-season finale, Becca was shown breaking up with Thomas and crushing his heart before overnight Fantasy Suite dates because, despite having "an incredible start" to a relationship, Becca didn't want to leave The Bachelor franchise for the third time with a man unless she knew everything about him, including how he'd face adversity and real-life challenges.
However, the finale concluded with an update on Becca and Thomas' relationship, revealing how they had reunited after filming ended and were dating, "happy and in love."
During Becca and Thomas' appearance on "Talking It Out" last year, Becca revealed she's the one who tracked down Thomas' phone number and initiated their reunion.
"After we ended things, I think I waited a couple days. I didn't have my phone right away and he didn't have his phone right away, so I think I gave it two days," Becca said.
Thomas recalled, "I was waiting for my bags in the San Diego airport when I got a text."
While Thomas confessed he was "mad" and "hurt" about his Paradise breakup, he had faith they'd have "a future conversation."
"I was just waiting for the moment and opportunity to see her again," Thomas shared.
"When she first texted me, she started off, 'I know I'm probably the last person you want to hear from right now.' And it couldn't be further from the truth, that's the one text I was waiting to hear."
Thomas shared, "That's the one person I wanted to see. That's the one person I wanted to hold... [Our split] showed us that we experienced something and it was taken away from us for a moment."
Becca said she met up with Thomas in San Diego and they picked up right where they had left off, and Thomas told Hollywood Life that he had no hesitation or reservations about giving Becca another chance.
Becca also boasted about how Thomas is different from her past relationships because he's so passionate about a life with her and was prepared to fight "tooth and nail" to save their romance.
"He is so supportive and he's just funny and quirky in the cutest ways. Everything about him, I just felt safe with, unlike anything I had in the past. I was just like, 'This guy is my guy,'" Becca gushed.
Becca had her heart broken by Arie Luyendyk Jr. on The Bachelor's 22nd season in 2018, when he decided to end their engagement because he was still in love with his runner-up, Lauren Burnham, who is now his wife and the mother of his three children.
Becca also had her very public breakup with Garrett in 2020.
"I'm gonna probably hate myself for actually admitting this to anyone, but I called my mom -- and even though I was engaged twice in the past -- I was like, 'Mom, I think I want to marry this guy,'" Becca previously said on the "Talking It Out" podcast.
"It's the first time I've ever actually said that out loud."
Since the pair began dating in the real world, Becca has defended Thomas and stood up for their relationship on more than one occasion considering he had been portrayed as a villain on Katie Thurston's season of The Bachelorette.