"I love you more than life itself."
Yes indeed. Of course it's completely illogical, since the two options are not mutually exclusive. If I die, I will also (and automatically) stop being your spouse etc.It could be said as "I would rather die than stop being your husband/wife/lover/partner".
the answer is that life is an uncountable noun that doesn't take an article in such sentences.
I think life is a countable noun and the plural is "lives"
even if it's uncountable noun we can use "the"
I don't know what you mean by "we can"? Who do you mean by "we"? Do you mean people like you who are learning the language or those of us that speak it daily and know that WE don't?
when I ask I want to know the right answer which of course you speak daily. Because it's your language.Do you mean people like you who are learning the language or those of us that speak it daily?
If you are asking "can we?" then the answer is NO, not in this case.
I cannot say if this is ALWAYS the case, although generally it is. If you offer some other examples I can comment on them.