If your guy says chatting flirting with other gurls is okay but you chatting other men is not. What do you say?

So, they believe that men can chat with other women and it is okay. But if women do so it is not okay because it means different.

In my opinion chatting flirting with other men or women doesn't have any difference because the more they interact the more they will develop and one day they will complain about the partner they have and wish the person they have is the third party. And, disaster will strike.
If your guy says chatting flirting with other gurls is okay but you chatting other men is not. What do you say?
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