Tom and Elizabeth had had a beautiful relationship, only Elizabeth didn't really know how the story was going to end..
Because Tom was taking drugs, he left her himself... but he began to miss her and only when he took drugs did he call her. Like today*
*It was 4 am and Elizabeth received a call, from whom? From Tom, obviously... she answered *
"Why do you only call me when you're high?" Elizabeth blurted out the second she answered, but Tom wasn't far behind.
"Drugged..?"