Sentence 1: Mary kept getting calls from random people. 
 Sentence 3: Mary changed her number and the problem stopped 
 Sentence 4:  She is very careful about whom she gives her number to 
 Sentence 5:  Ironically, she felt  more loved when she received all the calls 
 Option 1: The calls all came from the same area code, so she blocked them easily. 
 Option 2: The calls came in all hours of the night and day.