A: Yes and No, it depends on the kind of "love"
referred to

IF we are referring to the kind of love that
"sweeps us off our feet", "bowls us over" and
"can never die"

THEN the answer is No - this kind of love
can not co-exist with doubt; doubt will kill it

however, love and doubt can co-exist if we are
referring to another kind of love -

one experienced at a later time, a time after
"the love can not die" has long been dead

this kind of love is more seasoned and broad,
it is experienced in the "head" as well as in the
"heart",

it encompasses thought as well as feeling, and
therefore allows for analysis, judgment and doubt