If you read her autobiog "And A Voice To Sing With", she says that she fell very deeply in love with someone "in Los Angeles" who is never named, which seems to have happened during the time her husband was apart from her. (I'm writing from memory so details - which she never goes into anyway - are hazy.) I always got the impression that there was nothing cynical in either her union with, or her parting from, David Harris. As everyone knows, love isn't something we have power over. Best of all, read her book and let her tell it in her own words.