I am not very sure but I would probably use on the other hand or therefore.
By comparing himself to the figure of Lazarus, Prufrock is engaging in something of a life-death narrative. In his imaginary conversation with the woman he seems to be addressing the poem to, Prufrock imagines himself saying "I am Lazarus, come from the dead"<span> where Lazarus lying dead in the tomb is like Prurock engaging in his self-made </span>universe (the poem)<span>. Lazarus returns from the land of the dead</span><span> to tell others of f his experiences just as Prufrock imagines himself coming out of his thoughts - which might be drug induced - to tell of his imaginings. </span>
I would say flighty is the correct one<span />
Run-on sentence
In prescriptive grammar, a run-on sentence<span> is two independent clauses that have been run together without a conjunction or punctuation mark between them. The picture is an example.</span>