For me..it's not.. As long as you don't hurt other people's feelings.. But on the other hand.. According to the Bible.. It is a sin..

I think you are both having self-denials.. You both have new relationships now..so, why experiencing such childish act.. Maybe you haven't move on yet.. Think about it..maybe you still love each other but you both think that it was a traumatic experience when you broke up.. It is a hindrance of getting back to relationship … Read more