Your best friend just broke up with her boyfriend and she told all of her friends that she is so over him. Days later, you got a call from your friend’s ex and he is asking you for a date. He probably noticed that you have been eyeing him in some instances while he and your friend were together. You wanted to say yes, but what about your friend? How do you think she would react? Is there are rule about dating your friends’ exes?
Naturally, it is unadvisable to date your friends’ past relationships. Not only it would create an awkward atmosphere between you and your friend, imagine your dear friend reacting sadly/ angrily/ violently (you choose) upon the sight of her ex-boyfriend. You, on the other hand, may also be accused of being "the cause" of your friend’s breakup. You surely do not want all that drama, do you?
However, there are some unique circumstances where it can be okay to date your best friend’s ex. For one, you have to tell your friend that her ex is asking you out. If she clearly stated that she does not care at all about it, or that she is all right with it-and you truly believe she meant it-you can say yes to the ex’s invitation to have lunch by Friday.
There is also a certain "time factor" to determine when it is okay to date your friend’s ex-boyfriend. You need to make sure that their time as exes is now longer than their actual relationship, or when your best friend is happily dating someone else and is completely over her ex, before obliging to go out with the ex-boyfriend.