"In some way, it kind of still feels like yesterday," Blake admitted of his whirlwind relationship with Katie, a former bank marketing manager.
"And I think only because time off the actual show and television is one thing, but when things continue to kind of spiral off -- that, and it's six months later, all of that stuff kind of happened after the actual finale of the show -- that it kind of keeps up with you in a way."
Blake explained how he still gets tagged on social media regarding The Bachelorette and Katie news.
"You're still getting tagged in things along on the way and memes... that makes you feel like you never got out of it, in a really weird way," Blake said.
The wildlife manager, who has a passion for animal conservation, laughed and continued, "So I remember it like yesterday. It's one that I'd like to now forget -- just in the way that it all kind of played out. But, yeah, it has been a year and it does not feel like that at all."
Blake recently said he has no unfinished business with Katie, and he appears to be healed and totally moved on from that relationship.
"I took a break [from dating] for a long time," Blake recalled.
"I was focusing on all these other things. I think naturally... you want to find that person and that love, and so, I started diving back into it again, trying for the last five weeks or so."
Blake noted how he went on a couple of dates but they "didn't go so hot."
"It didn't go so well. I didn't love how it went," Blake confessed.
"And so, again, projects and things come up where it's starting to take my efforts elsewhere. If I don't think I can fully put the effort into actually trying to make a relationship work, it's going to take someone super special who is patient and very supportive, and I just haven't felt like I've ran into that yet."
Blake therefore said he's "reluctant" to date a woman if he can't "give it [his] all."
On Monday, Katie told fans in an Instagram Q&A session that she'd do things "differently" if she could "go back in time and redo" her The Bachelorette season "given what [she] now knows behind the scenes," according to Us.
While it's unclear if Blake would've made different choices on The Bachelorette, he admitted it's "unlikely" he'll ever appear on another reality dating show again.
"I never say never, right? Never say ever. But I would say unlikely on the dating-show aspect of things," Blake explained.
"There's some other projects I'm working on [that are] wildlife-related, but for the most part, dating, I think I'll keep that to the real world."
Blake joked how a "dating in the wild" type of show could work for him.
Blake also suggested earlier this year he's open to dating both women from Bachelor Nation or someone without fame and a social-media following.
Blake sparked dating rumors with Love is Blind alum Natalie Lee in July, but it appears they were just working on a project together in Nevis to save sea turtles. Natalie reportedly took an interest in Blake's wildlife conservation efforts and decided to join one of his trips.