"Final two will be [Roberto Martinez and Chris Lambton]. But I'm still a bit unsure if Ali even chooses one in the end," Pappas, who starred in The Bachelorette's third season, toldUs Weekly in a Tuesday report.
"I think my final two are a solid choice, and I think she really really likes them, but I usually hear a rumor of who's going to win, and I haven't heard anything. If she doesn't find anyone in the end, she will not choose anyone."
"If she does pick a final one, I think it will be Roberto," Pappas told Us.
"Right now Ali only has eyes for Roberto. He melts her heart every time she sees him. I can relate because on my season, my Roberto was [fourth-place finisher Graham Bunn]. I literally only had eyes for him, and I think of that every time she looks at him."
"Some people say he's sweet and endearing and its nice that he cares about Ali so much -- and then the other half of the people are like... He's probably going to be the one on the season who's like 'Oh, I have a girlfriend. I am with that half of the people," Pappas told Us.
"I think he's got something up his sleeve and in the next couple of episodes, we're going to learn a lot about him... He's going to be a lot of trouble for Ali."