The actress is currently on maternity leave following the arrival of her baby boy Johnas, which means that Leah will soon depart screens.
Viewers will see Leah make the difficult decision to bow out from the Bay in a desperate bid to escape her stalker Jamie (Hugo Johnstone-Burt), who has left her terrified by breaking into her home and scaring her son VJ.
Nicodemou told TV Week of the storyline: "You should feel safe in your own home and not think that someone is breaking in, so this leads Leah to question what else he is capable of. She doesn't trust that Jamie isn't going to do something and wants to be on the safe side.
"She fears for her life and VJ's life. She sees no other option but to pack up and leave town. She's made a lot of friends in the Bay and they've become like family to her. Leah will miss the Bay, just like the Bay will miss her."
Discussing motherhood, she continued: "It's really nice to have a different focus for a while and to just concentrate 100% on that. I catch up when I can on the show. I like to see everyone's faces every once in a while. I caught the outback episodes recently and was really proud of the show - I thought it looked amazing!"
Nicodemou told the magazine that she is "looking forward to returning" to Home and Away when the time is right, but plans have yet to be confirmed.
She added: "It would be lovely to come back to a big storyline and sink my teeth into acting again."
Home and Away airs Leah's exit scenes this week on Network Seven in Australia, and in January on Channel 5 in the UK.