Nick, who starred on The Bachelor's 21st season, criticized Rachel's emotional meltdowns and how they've impacted her ability to find The One during Tuesday's episode of the "PEOPLE Every Day" podcast.
"I honestly think Rachel, I mean, she seems great, but I think she's prioritizing all the wrong things right now," Nick, 41, explained of the flight instructor's behavior on the show's currently-airing nineteenth season.
Nick said Rachel's focus on Logan Palmer switching "teams" has made for one of the most "realistic seasons" of The Bachelor franchise yet, adding how Rachel's predicament "relates to modern dating."
Logan accepted multiple roses from Rachel but realized that he still had lingering feelings for Gabby Windey, whom he had kissed earlier in the season.
Logan noticed that he was missing a spark with Rachel, and so he decided to dump the blonde beauty and pursue the early connection that he felt with Gabby, who admittedly liked Logan and ended up giving him a rose at the season's fifth Rose Ceremony.
"You go on dating apps and you're swiping right [to indicate interest]. And every time you swipe right and you don't get an immediate match, there's this sense of rejection," Nick said.
"And oftentimes we will focus on the rejection rather than the connections that we're making. And it seems like that's what Rachel is focused on."
Nick pointed out how Rachel clearly has a strong connection with the recipient of her First Impression Rose, Tino Franco; however, she chose to cancel a group date that he was on in Belgium because she was devastated over Logan's decision to withdraw from her side of the race.
Nick, who also previously appeared on two The Bachelorette editions as well as one season of Bachelor in Paradise, suggested that Rachel was too caught up in feeling pursued and sought after by the guys.
"I think we have to remember that, like, this show is not about to see who can be the most popular, who can get the most 'swipe rights' on a dating app," Nick reasoned. "It's about who you can find love with, with just a single person."
When Rachel canceled her group date in Bruges, Belgium, The Bachelorette host Jesse Palmer came to her room on the cruise ship and explained how there isn't a perfect Bachelor or Bachelorette and so she shouldn't strive to be that.
Jesse, who previously starred on Season 5 of The Bachelor, advised the flight instructor to keep moving forward after rejection and set her eyes on the prize of a potential engagement with the right man at the end of her journey.
Jesse reminded Rachel how that fairy-tale ending was still possible for her, as long as she embraced the men who were truly on the show for her.
Prior to Logan's betrayal, three men -- James "Meatball" Clarke, Termayne Harper and Alec Garza -- had turned down roses from Rachel at the season's third Rose Ceremony for a chance with Gabby. (Once Gabby eliminated Meatball, he asked Rachel for a second chance and she welcomed him back).
However, Gabby has also faced her fair share of rejection on the show. During a group date earlier in the season, Hayden Markowitz, Jacob Rapini and Tyler Norris explained how they only had interest in pursuing a future with Rachel.
Although many fans believe Gabby and Rachel were pitted against each other this season by having to date the same guys, the women have claimed they wouldn't have wanted to go about the process any differently.
"Gabby and I never felt like having our boys in two separate parts of the boat pitted us against each other. We always had open communication. We always put each other first," Rachel recently told Us.
"So as far as what anyone thinks about it being a competition, it's really coming from them and not us."
And Gabby similarly told The Hollywood Reporter, "It was so nice to have somebody else, a true friend, go through it with you. Watching the criticism back and seeing it online, it's not that surprising, but it's almost like, 'Oh, you guys are kind of missing the point.'"
Rachel and Gabby have two more weeks of dates on The Bachelorette's nineteenth season before they must choose their respective Final 4 bachelors for hometown dates.