Unknown texter

Meliodas and his friend Ban together with King had a contest. The one who disagreed to the dare first lost. Meliodas was dared to do a really stupid thing. He would text a number he just clicked in. He did and got an answer.

Elizabeth was hanging with her friend Diane when she got a massage. She looked at it to see a unknown number. Then she answered it.

They continued to text each other day after day and it become a daily routine. One day, they decided to play the same game as Meliodas did when he texted her for the first time. What happened?