"The dates this first week of paradise were all super romantic, but by the end of Tuesday night, literally all of the relationships that stemmed from them were sailing in rough waters (other than [Derek Peth] and [Taylor Nolan], at least not yet)," Chris wrote in his Yahoo! TV blog.
When Carly and Evan met on Bachelor in Paradise's third season in 2016, they started out as friends. Evan persistently pursued Carly in the dating process only to be met with resistance. In fact, Carly made fun of Evan in her confessionals and expressed how she was turned off by their first kiss because it was terrible.
Over time, however, Carly grew to appreciate Evan's quirks, and their dynamic slowly turned into love.
"It's easy to say something like 'they're the most unlikely couple in Paradise history,' but I don't really think that's the case. I think if you really know Carly and Evan, it's pretty easy to see that they were meant for each other. The goofiness, the silliness, and the overall undying love of life that they both have is hard to match. But thankfully, they found each other," Chris wrote in his blog.
"Sometimes the thing you've always been looking for is right in front of you, and I think that's what happened here. Once Carly let go of her preconceived notions of what she thought she wanted, she was able to see that Evan was her unicorn."
Chris Harrison therefore concluded about Bachelor in Paradise's blossoming fourth-season couples: "A relationship like the one that Carly and Evan had is one that we hope to see again, so don't rule any of these duos out quite yet."
Chris explained there was a big shift in many of relationships in Paradise because the bachelors and bachelorettes spent time at home when filming was suspended for almost two weeks due to the DeMario Jackson and Corinne Olympiossex scandal.
"The one thing that changed dramatically was that during the shutdown, relationships back at home progressed and changed and we tried our best to make sure you were all able to keep track of the things that had changed," Chris noted.
Following Monday night's premiere of Bachelor in Paradise's fourth season, Chris suggested to ABC News, however, there may not be any engagements at the end.
"The short time frame, we came back and we had a compacted schedule," Chris said, referencing the shutdown of production in June.
"A little tougher to come up with a happy couple -- and I think you're going to see there's a little more of an organic feel to the show as it will continue after we leave Paradise. So, we're going to see if we have a happy couple and end up with an engaged couple during the live finale later on."
As Chris previously revealed, the live finale will feature updates on all the couples that developed in Paradise, similar to the franchise's After the Final Rose format.