Sentence 1: Matt was in a hurry to his boyfriend. 
 Sentence 3: Matt realized he forgot to lock it, after dinner with his boyfriend 
 Sentence 4:  Matt rushed home and looked everywhere for his keys 
 Sentence 5:  The whole time the keys were in his back pocket and he let out a sigh 
 Option 1: He heard he fell and broke his arm. 
 Option 2: Matt rushed outside of the house and forgot to lock the door.