Richardson's alter ego Ste starts an unexpected romance with business partner Doug (PJ Brennan) later in the week on the Channel 4 teen soap.
Referring to his domestic abuse storyline with Emmett Scanlan (Brendan Brady), Richardson told the PA: "We've had quite a dark 18 months for me so I'd like to see something a bit lighter.
"I think some of the stuff coming up in the next couple of months, I can't say too much, but I'm happy with the direction it's going.
"Ste has no friends so it's been amazing to have PJ there, we've got this friendship and now we're business partners, and is it going to lead to something else?"
Hinting that the romance may not last, Richardson added: "It's nice to have a lighter side to him and a friend if nothing else."
Watch Kieron Richardson talking about 'Stug' to Digital Spy below: