Marriages need separations. Sometimes a couple will get into arguments and be angry at each other just for the sake of creating a distance so that husband and wife can feel like they're coming together... But there's a better way.
She wanted to convert but when the Rabbi informed her of the requirements and also mentioned immersion in a mikvah, she balked. She was ready to do everything except for the Mikvah ritual, which she found difficult to comprehend...