Poem "Stealing" by Carol Ann Duffy What is the general tone of this poem?

One way of
discussing the general tone of this poem is to call it narcissistic or solipsistic.  In other
words, the speaker seems focused almost entirely on himself: on his
thoughts, his desires, his feelings,
his needs, his actions, etc.  Notice how frequently
the simple word "I" is used. (Does any other word, except possibly the articles
"the," "a," and "and" appear more frequently in this work?)  It's
possible to suggest that most of the other tones valuably mentioned above result from the
speaker's even more basic tone of self-centeredness and self-involvement.