When asked what scares him most about marriage, Zac noted it's all about working as a team to get through challenges and issues, which would inevitably present themselves down the road.
"I'm crushing on Tayshia. It's, like, surreal. There are real feelings and there is real chemistry. You feel all the butterflies. I feel all the feels, which is what I think they call it these days, and I do not want it to end," Zac gushed in the latest episode.
Tayshia ended up giving a group-date rose to Zac because their time together meant a lot to her.
"Zac and I have chemistry, and it's intriguing to me because I want to get to know more about him. It also feels very comfortable, like we've known each other for a while," Tayshia shared.
Until viewers can watch more of Zac and Tayshia's love story unfold on the show, let's learn a little bit about this The Bachelorette suitor right now.
Below are eight facts Reality TV World has compiled about Zac Clark.
Zac is very close to his sister Kat
Zac says his sister Kat is one of his "rocks." He calls her "a badass" and a "hero," and he apparently adores his niece and nephew.
Kat actually nominated Zac for The Bachelorette, so Tayshia can thank Kat for Zac's participation on the show this season.
When announcing The Bachelorette cast on Facebook this past summer, Chris said Zac will share "a heartfelt story" with viewers.
"He has a bit of a Nick Viall vibe to him. Again, I'm not sure if that's a good thing, we'll see. But he really is a tremendous guy, and this guy has a heart of gold," Chris shared.
Chris added that Zac is "a quiet guy" but also "a sweetheart."
Zac Clark is a recovering alcoholic and drug addict
Zac is a recovering alcoholic and former drug addict who also abused both illegal and prescription drugs.
In a 2014 speech, Zac reportedly said his addiction resulted in "15 years of lying" and culminated with a four-and-a-half month stint at a addiction recovery facility that helped him turn his life around.
Zac's addiction was extreme
According to a report the Reading Eagle published at the time, Zac spoke at a gathering at Alvernia University in January 2014 and detailed the lengths of his addiction.
Zac apparently once complained of a pain in his side and asked doctors to remove his gall bladder so he could have access to heavy painkillers. He was also thrilled to receive drugs after a brain tumor was removed from his head.
The report says Zac snorted and smoked OxyContin, shot heroin intravenously, smoked crack and did "whippets," which is inhaling bursts of nitrous oxide for a short-lived high.
Zac was eventually arrested for possession of crack and driving while intoxicated, and then he decided to turn his life around and never look back.
Zac tries to inspire others not to repeat his mistakes
In 2017, Zac co-founded a recovery program with a variety of services called Release Recovery with his friend Justin Gurland to help people reclaim their lives after struggling with addiction.
Both Zac and Justin had their own personal journeys in recovery, which made them want to share what they've learned with others on the same path to sobriety.
Zac was previously married
During his speech at Alvernia University, Zac reportedly revealed he got married in his 20's after graduating college.
According to Zac, his addiction even dominated his wedding planning, as The Bachelorettebachelor admitted his biggest concern was trying to figure out how he would be able to get drugs during his honeymoon in St. Thomas.
"I have got to leave the country for 10 days and for a guy with a serious, serious drug problem, that's not cool," he told attendees, according to the Reading Eagle.
Zac is a former athlete who initially planned to pursue a career in sports
Zac played three sports in high school and later played baseball in college, but his focus was unfortunately on partying at the time.
Zac says he loves Philadelphia sports and dreams of sharing a Philly Cheesesteak with his future wife while watching the Eagles win a Super Bowl.
Zac has run numerous marathons for good causes
Zac runs the New York City Marathon every year -- six years straight as of 2019 -- in honor of a friend's brother, who died from his own battle with addiction.
"To me, the NYC Marathon embodies something that our nation needs more of: LOVE. It is the one day of the year that the entire city comes together and cheers for the same team. It's about shared passion, inspiration, and teamwork," Zac wrote in a November 2018 post on Instagram.
"It has become my favorite day of the year because of this spirit. As we continue to face a challenging social climate, I encourage EVERYONE to continue to take action, get behind causes that matter to them and keep spreading the LOVE."