Bob Dylan's girlfriend of 20 years says she helped the folkie crooner write some of his songs -- and she's suing to get her hands on at least $5 million she says he made off them. Ruth Tyrangiel, who was in a relationship with Dylan from 1974 to 1993, says in a lawsuit just filed that she "devoted all aspects of her life to (Dylan's) needs, interest and well-being." Furthermore, she says Dylan promised to give her half his wealth if they split. Tyrangiel wants a monthly stipend, half of Dylan's assets and $5 million in damages. She didn't say which songs she wrote. A Dylan publicist condemned her lawsuit as being "without basis."Post your opinion on theSocietybulletin board.