Before the fight with M'gann when she storms out, she mentions that perhaps Artemis should write a book of grievances, and then sell it so that it may help others going through a similar situation to hers.
Artemis seriously doubts anyone else has lost their boyfriend who has superspeed to an alien race attempting to conquer the earth by blowing it to bits.
M'gann says that Artemis thinks too narrowly about things.
Artemis agrees full heartedly.