Helena saw Rhea’s call and didn’t answer. She didn’t expect that Rhea would leave a message;
“There’s a situation, I won’t be able to go on Monday.”
When Helena got around to hearing the message, she thought another dose of demand was in order.
She rang Rhea who instantly told her that she could not attend on Monday.
Helena had nothing to hold over Rhea.
There was no debt, there was no favour, there was nothing. Helena had to accept the loss.
It was too late for her to find someone else for there was no one else who wanted anything to do with Helena.