revenge????

Nana
So I've been dating my bf for a 5 month and we have connected in every single way. I love him so much and I see myself spending the rest of my life with him. He is the perfect guy and he treats me like a princess. I have never ever in million years thought this man I loved would be a total different man. His friend and I are really close and I was on the phone with his friend and telling him how much I love my bf and that I will do anything for him and that we are going to grow old together. His friend stops and says hey ik you love him but your bf is not the one for you he has a gf in Boston and he messes around with another girl. He tells me that he loves me but he is no good for me. I'm heart broke and sad. I just can't believe how this person that I thought was the best thing truns out to be my worst mistake. My bf doesn't know that ik so me and my bestfriend planned to expose him and his bff cause they were both playing us. We want revenge and we want to hit them where it hurts the most. We both found out that our boyfriends were just using us. Is it wrong of us to seek revenge?