What would you do if you’re girlfriend called you while having sex with a ex girlfriend?

Anonymous
So my ex left me 5 weeks ago for someone else who I find out was trying to convince her to leave me for weeks. We have been having sex for the first 3 n half weeks of their relationship then stopped over I sent her all her stuff back. He made her block me on all social media &change her cell number not knowing she cheated on him. She ended up messaging me on Facebook&email behind his back their whole relationship but heard they had a big fight over him seeing texts from me.

I was feeling very petty last night so I called him while me and her while having sex from her phone I heard crying then sent him a copy of the marriage license since me and her were supposed to get married 2 weeks ago which he doesn’t know about. Sent him proof she’s been cheating on him the whole relationship then slept with her agin then sent a 15 second video of her screaming my name so he doesn’t forget who she is as a person. I have not heard from my ex girlfriend since last night am not blocked and I don't know if she scene talking to her anymore. What would you do in his shoes after all of this? He had already said he was worried about her texting me last time and even made her block me on Pokémon go before I did this 😂
Updates
11 mo
I do feel bad for what I did but knowing he was talking shit before she left me I couldn’t help myself
What would you do if you’re girlfriend called you while having sex with a ex girlfriend?
6 Opinion