You shouldn't internet stalk your ex.
Samantha had a bad breakup with Billy and still misses him in some degree.
Samantha wants to feel better about the breakup.
Samantha puts herself back on the dating market, trying to find a new person.
Samantha starts adding Billy's close friends to inquire about him.
Samantha gets a few hits on Tinder and finds a person who loves her.
Billy gets word of it, texts Samantha calling her a loser and telling her to leave him be.