Arie sent Bibiana, a 30-year-old executive assistant from Miami Beach, FL, home during the season's third Rose Ceremony after the bachelorette set up a romantic date for the two of them during the cocktail party.
The only problem? Bibiana couldn't get to Arie first once the cocktail party commenced, and so Bibiana's competition got to enjoy her little setup under the stars.
"Ah, this was the night of the infamous daybed. Bibiana, if you're reading this, I'm so sorry about the mixup!" Arie wrote in his People blog.
"You truly created an amazing setup and picked the best spot in the house. That's why all the girls and I wanted to use it! It's such a bummer watching back and realizing you put so much thought and energy into creating it, only to not be able to use it first."
Arie admitted the decision to let Bibiana go was a tough one.
"As up and down as the weeks can be, the most difficult evenings are always the Rose Ceremonies. It's something you never really get used to. After a couple weeks of dates, saying goodbye is only getting harder," Arie explained.
"I've really started to get to know these women and, even if they're not for me, they're amazing and I don't want to hurt them. Bibiana is so beautiful, strong, sassy and hilarious. I knew that she wasn't my future wife, but that didn't make it easy to see her go."
The 36-year-old pro racing driver turned real estate agent added of Bibiana, "I really wish her the best in finding the love that she deserves."
Earlier in Arie's week of dates, Bibiana had unfortunately used her time with the Bachelor during a group date to vent her concerns and complaints about Krystal Nielson.
Bibiana felt Krystal was unfairly and selfishly monopolizing Arie's time, but the Bachelor just didn't want to hear about drama when there were more important things to discuss.
"I love that Bibiana felt like she could come to me with her frustrations about Krystal and the other women -- I just also wish that we had been able to use our time to get to know each other better," Arie confessed.
"Group dates can be really intense, but my hope was always that the girls would be able to ignore the weirdness of all dating me at the same time and focus on OUR relationship."