Becca also confirms former fiancé Arie Luyendyk Jr. makes an appearance this season before she asks him to leave again.
The two chatted about everything from who he thinks she chose on this season of "The Bachelorette," to what it's like being newly engaged, to her very dramatic breakup with last season's "Bachelor" star Arie Luyendyk Jr.
Kimmel's always been vocal about his wife's obsession with the ABC reality show and admitted that he, too, is now invested in the drama.
"[My wife] actually picked the same guy you picked," he told Becca of last week's episode. "She picked Garrett, just like you did."
"Not Blake in the red blazer?" Becca asked, to which Kimmel replied, "No, we made fun of Blake."
In an attempt to sway Kimmel from thinking she ultimately chose Garrett, Becca said, "What if it's Jordan?"
Kimmel let out a belly laugh and said, "It's not Jordan. Jordan appears to be maybe the dumbest person that's ever been on television, yes?"
Becca politely laughed but refused to agree. "Jordan is Jordan, and he owns it. He's just the most unique person," she said.
"Are you considering a career in politics because that was very well put," the comedian quipped.
Kimmel then asked Becca what it was like for her to watch -- along with millions of Americans -- as Arie proposed and then un-proposed to her on national television.
"I watched it backstage during 'After the Final Rose' right before I had to see him," she explained. "So there was a lot of tears, a lot of snot running down my face. I'm sorry everyone had to see that."
"No, no, we enjoyed it," Kimmel replied before playing back the scene in which Arie tells Becca he's interested in perusing a relationship with now-fiancée Lauren Burnham.
"I feel like there was a moment where -- in the middle of the shock and misery -- you realized, 'Oh, I'll probably be 'The Bachelorette!'" Kimmel joked. Becca laughed but said that thought did not enter her head until about a month after the public embarrassment.
Becca also said she did not keep the ring Arie gave her. "Good riddance!" she exclaimed. She also said he makes an appearance on this season of "The Bachelorette," where she "did tell him to get out" -- and he finally listened.
Kimmel also asked Becca why she wasn't wearing an engagement ring, to which she replied, "Can't give the guy away; can't give the ring away." She did, however, assure Kimmel that she's "very certain" with her decision this time around.
"The Bachelorette" airs Monday nights at 8 p.m. on ABC.