Her: Sorry for falling off the face of the earth, went home and it was mad
Her: I hope you’ve been ok though

No worries, I’ve been good. Busy but that’s how I like itHow have you been?
 Since the girl hadn’t responded in a while, the aim of this message is to show that you are unaffected by her absence with a slight display of higher value that you have other things going on in your life.