No, she has left for good.
No she is not coming back.
The Empty Child and The Doctor Dances
New Earth (series 2 episode 1).
Yes, Rose returns from the parallel world at the end of episode 12, at the end of episode 13 The Doctor returns her and clone Doctor to her world to live their lives together.
The actress Billie Piper played the companion, Rose Tyler, in the show Doctor Who. Billie piper acted in seasons 1 and 2 as the doctor's companion. She also acted in seasons 4 and the episode called The Day Of The Doctor as bad wolf.
The Doctor was about to say ''I love you'' to Rose Tyler, but was cut off from that universe, so never got the chance.
When the Doctor is contacting the Sontarans and it comes up on the Tardis screen rose flashes up on the Tardis screen and then it flashes to the Doctors face
Rose and the clone Doctor kiss in Journey's End (series 4 episode 13). Although Rose and the real Doctor have kissed, Rose was possessed by Cassandra at the time.
rose
Yes
She loves him.
When Rose first meets The Doctor it is stated that she is 19 years of age.