The 32-year-old rapper and the Quality Street heiress - a former star of reality show 'Made in Chelsea' - separated in February, three years after they tied the knot, and he was upset that the pair couldn't make things work between them.
Asked what their split taught him, he said: "I didn't get married to get divorced. Neither of us did.
"So all that really comes from it is it's quite sad that it ended."
However, the 'Read All About It' hitmaker still believes in finding a significant other and will always have feelings for people he's been in a relationship with, even if they are no longer on good terms.
That also applies to his mother, who he no longer speaks to after she walked out on him a year after he was born.
Asked if he believes in true love, he told Balance magazine: "Definitely, because I love people I've had relationships with. I love friends - even friends I'm not friends with any more. And family members.
"I can't tell you that I don't love my mum, because I wouldn't be here without her.
"So even though we don't have a relationship, she's still someone I love - all be it from a distance."
Despite his personal upheaval, Pro - whose real name is Stephen Manderson - insists he is feeling "content" and is taking positive lessons from his divorce.
He previously said: "I'm content and I'm just enjoying all of it.
"It feels pretty good putting music out again and the response has been amazing. I haven't just had a turbulent couple of years. My turbulence has been my entire life. But the end of my marriage has taught me there's no permanence in life.
"You have to accept that most things are temporary and there's a real positive to be drawn from that. These days I'm just happy."