Sentence1: Karen had gone away for school, leaving behind her partner Sam. Sentence2: Sam was missing Karen, but he had a plan to fix that. Sentence3: On a long weekend, Sam took the train upstate to go visit Karen. Sentence4: Karen who was missing Sam, had a plan to fix it as well. 
 (A) She traveled home to see Sam, and they missed each other! (B) She broke up with Sam, leaving him heartbroken.
A