Ruby, played by Rebecca Breeds, has been insisting that her relationship with Romeo (Luke Mitchell) is strictly platonic, but their friendship has caused major problems for Indi (Samara Weaving).
When the couple split, Ruby uses the opportunity to make her move on Romeo, the Daily Star Sunday reports.
However, Romeo rejects Ruby's advances and tells her they will never be anything more than friends.
A Home and Away insider said: "Romeo is really cut up when his marriage falls apart. He hits the bottle and returns to the Summer Bay House to find Ruby waiting for him. When he leans in for a kiss she pounces."
Viewers will see the plot unfold on Channel 5 this summer.