"Sending Cassandra home that night was very hard. When I got back to the girls I told them that she is a wonderful woman and deserves a great guy, but that I wasn't the right guy for her. The other girls then told me that night was her birthday, and I almost died. I was devastated, and at first I thought, 'What a birthday present I just gave Cassandra!' I felt horrible," Galavis wrote in his People blog.
"After thinking about it longer, I realized that it was better to be honest with her and that she would now get to spend her birthday at home with her [two-year-old] son. That made me feel better."
Ferguson, a former NBA dancer from Rochester Hills, MI, told Galavis she was disappointed to be ousted but respected the fact he didn't make her wait two more days until the Rose Ceremony.
While the girls have been reading into -- and taking very seriously -- whom Galavis chooses to give his one rose to during group dates, The Bachelor star apparently doesn't base his decisions on feelings or connections.
"I give the roses depending on whom I think needs the confidence more. I want that person to feel comfortable coming into the rose ceremony and for next week's trip," Galavis said. "I knew [Sharleen Joynt] had doubts about being here and how I felt about her, so I decided to give her a little reassurance by giving her the rose."
Clare Crawley was another girl who needed some reassurance after Galavis suggested their ocean swim on a prior group date was wrong and disrespectful to his four-year-old daughter Camila. Crawley was very hurt and taken aback by the Bachelor's sudden change of heart since he had been very enthused about the romantic event in the moment.
"We talked for hours about what had happened in Vietnam. We both understood each other's different ways of thinking and respected both points. That's what relationships are all about, respecting and understanding each other and getting to know one another better. That felt really good," Galavis explained.
"For dinner that night, I took Clare to my suite -- I didn't have another place to take her with all of the crazy weather. I also just wanted to have dinner and relax with her. I'm the kind of guy that doesn't need a fancy date, and hanging out with Clare on the couch and just talking was great."
In addition, Galavis expressed how it was very hard to say goodbye to Kat Hurd.
"Although it was so pretty there, it made it even harder to say goodbye to Kat. She is sweet, caring and very mature, but I unfortunately didn't see enough of it," he wrote.