The 24-year-old, who plays Theresa McQueen in the soap, said that Atherton (Will Savage) had been nothing but supportive throughout her stint on the show.
"The whole time I've been doing this James has been really supporting me and he likes [professional partner] Matt Evers," she told the Daily Star.
"James comes to watch me every week, even though he has to be on set the next day. If anything, things are probably better than ever between us. I'm one of the lucky ones as I get to work with my boyfriend all week."
Porter went on to claim that Atherton has never been put off by her sex symbol status.
"He doesn't get jealous at all." she said. "I even found copies of Nuts magazine with me in it under his bed."
Porter admitted in January that her sex life has suffered since joining Dancing on Ice.