But even after their separation , Lou continued to be Rilke 's most important confidante until the end of his life .
His relationship with this married woman , with whom he undertook two extensive trips to Russia , lasted until 1900 .
Even after their separation , Lou continued to be Rilke 's most important confidante until the end of his life .
His relationship with this married woman , with whom he undertook two extensive trips to Russia , lasted until 1900 .