Revenge on my bf

My boyfriend cheated on me with my best friend. My friend told me three months later because she doesn’t want secrets. My boyfriend did not say anything I was devastated and I cried for a week I’ve had so much been then I became self-destructive I wanted to know exactly what they did was a sexually. And I took an even much more because I know that he likes her and she admitted that it was hot because i pressed her to tell that to me. And we met we spent the evening together I was dressed sexy and we started with me stripping and one thing led to the next and we did a threesome andfilmed it and I did I sent that to him. Our relation is now completely disturbed, but I do feel some satisfaction.