It seems as if he never wanted to move to QPR / Sunderland on a permanent deal anyway and so just sent his agent along, with ludicrous salary demands, to placate LFC. I guess I can't blame him for not wanting to go to those clubs after Roma & Liverpool, having had a successful loan season and still being only 24 yrs old.
He may feel, after proving himself at Sunderland, that he can push himself up the pecking order here and has a kindred spirit in Mario, a fellow Italian, to learn from. Probably feels he can give it until January, at least, when maybe his options could be better.