Rosemary Clooney never dated Jack Lemon but was married to Jose Ferrer twice and had five children with him. For most of her life she suffered mental illness and depression.
Rosemary was married and her husband was Jose Ferrer.She had five children and had relationship with other person but that person was not Lemon.She married with Jack in twice time but never date with Jack Lemon.
There is not any record of Rosemary Clooney's dating Jack Lemmon. She was married twice, both times to the same man -- Jose Ferrer. She also had a relationship with another man, but he was not Lemmon.