This does not happen in the comic book. Although Harry does travel to NYC to investigate another alien who used to live on Earth.

Harry and Asta go to a UFO convention so he can look for an alien artifact to repair the device he will use to kill humanity. He tries to cut a small alien device out of a woman who claimed to have been implanted, but admits it is a BB from a rifle. Harry is confronted by a man who can see through his disguise. Harry cuts out a small tracking device from the man's neck and tells him that he will never see the aliens that stole his wife's unborn son or his son again because "the Grays got what they wanted".

Ruby is single and starts the process of insemination via sperm donation.

Meg is single and goes through the process of insemination via sperm donation.

This doesn't happen.

An old woman gives Richard a pocket watch that he had given to her in the past.

Davy's dad beats him.

He is not a good dad, but he doesn't beat Davy.

Clementine suffers a seizure and dies at the end of the story.

Adele doesn't die.

Arya is rescued after Brom has died.

Arya is rescued before Brom dies.

Eragon had brown hair and brown eyes.

Eragon had blonde hair and blue eyes.

Jeanine is killed before the secret about the factions is revealed.

She dies after viewing the video.

Forney and Novalee don't get married.

They get married in the Wal-Mart.

Miriam breaks into Sarah's apartment at night and secretly touches/molests her while she sleeps to help attract Sarah to her.

Miriam uses a telepathic spell while playing music to attract Sarah to her.