Think about a scenario where you keep talking to a person almost every 2-3 hours be it on calls, or messages. It goes on for years and they become an inevitable part of your life. At no point you take precaution to even think that things might not go as planned ahead. 

I'm writing this about someone who went through a break up some six months ago. I've seen her literally going down to zero in her personal life and even it impacted her professional life. She used to feel the guy as inseparable part of her life and all of a sudden she gets to know that he doesn't want to be together anymore. I feel the voidness of not having someone to share becomes the most painful thing after a breakup. It is not about sex at all. It is more about the emotions of a person where you build the comfort zone over the years and it plummets down to zero all in a while. 

Though it was not me, but some of her friend suggested her to go for a casual relationship after the breakup .  I was not sure if this would get her out of the pain or throw her into some other issues from which she might not be able to recover again. I suggested her to go slow and watch carefully. 

The dating was just a hookup but that guy helped her get out of the trauma and she now feels much more positive towards life. 

Do you think a casual relationship after a breakup is good? I wanted to know opinion of others here too.