That is an interesting comment.
I have previously heard criticisms of Lee - Lee was a fascist; Lee was a Nazi; Lee was a Marxist; Lee did not support homosexual marriage.
I believe you are the first I can remember to say Lee was fond of war.
Because of chronological complexities your opinion can not be the result of direct observation; it must come from something you have read.
Can you cite information that indicates Lee was vainglorious; that Lee was fond of war? Perhaps your opinion is based on something General Eisenhower said.
I think the fact that Lee prolonged the war long past when there was any chance to win it, shows he was fond of something. The chance at victory at Gettysburg, even though Longstreet was perfectly correct in what would happened, showed that Lee thought his own name and force of personality would see them through.
Maybe it wasn’t war he was fond of, maybe it was the crowds screaming his name.