Very unrealistic for the character. Helen Blakemore is queer, not bi-curious. When will the breeders of the world let the poor woman have her own fun instead of some het fantasies?

Tsk tsk, you have done the writers of the Water Rats and Toni Scanlan the actor a great disservice. Helen Blakemore is a lesbian because that is the character. Toni Scanlan played the character well, and would not have even considered this storyline. Jumping the shark, or what?