Sugg, who got to the final of Strictly Come Dancing with professional dancer Buswell in 2018, said because they are both very career focussed, when they are home together they value it, making the time 'more special'.
The YouTube star, who has risen to fame on the platform over the last ten years, spoke to Kate Thornton on White Wine Question Time.
He said: "When she comes home, or when I come home, and we're together, it kind of makes that time more special, we value it more and we do things for ourselves.
"Of course, we share certain elements of it online, but a majority of it we actually just do for ourselves. I think it's really healthy as well.
"I think there's an expectation because our relationship formed on camera and you can watch the moment we met, it's really bizarre."
WATCH: Joe Sugg on falling in love on Strictly
He remembered his appearance on the TV show Who Do You Think You Are and imagined their 11-times great-grandchildren being able to watch back the moment the couple met 'on whatever the platform will be then'.
Sugg said: "Although it's expected maybe for us to share quite a lot online with our viewers and with people that watched us start our relationship.
"I think it's a lot healthier for us to to enjoy those private moments together, and have that element of being able to share what we want to share, but actually keep most of it back for ourselves."
While he admitted he'd had his 'love interests' over the years, particularly over the MSN messenger services, he said he threw 'the love word around way too much back in those days'.
Now he said he realises he didn't really know what love was then, saying: "With Dianne, that's definitely the first time I've ever experienced love. Other than like family love."
Sugg said while he still uses social media a lot, he has reconnected with nature since he moved to the countryside with Buswell and been through lockdown there.
Of the third lockdown, and only being able to go on one walk a day, he said that was the moment where the importance of nature 'really hit home' for him.
He added: "The easy thing to do is to scroll through our phones and sort of live out our lives online.
"But that for me was a moment where it made me now appreciate, more than ever, the fundamentals of a human being, of being outside and appreciating the nature around us."
WATCH: Joe Sugg on his YouTube fame, Strictly and challenging himself by performing on the West End