Is OTHER wrong in the post ? POST : **UPDATE IN PETTY REVENGE**
he intercepted the envelope so I had to go with plan g.

Title says it, but let me clarify because
I know how confusing this is. 

I have been with a guy since feb. he was annoying at first but grew on me. 
In May he proposed. I said yes because we were in public and he went out of his way to make it special. 
I felt bad. I had planned to tell him after. 

Well in June he got really distant. But maintained daily contact. Said it was him and not me and that he would work through it. That he loved me

He also borrowed A LOT of money from me. A whole lot and i knew I wouldn’t get it back if I dumped him.

The plan was to ride it out, get the money and leave. 
He is very toxic and manipulative and I don’t notice until around June also.

I have seen this guy regularly enough to not really think he was up to something.

Well the other day someone I don’t know messages me and informs me that HE GOT MARRIED IN OCTOBER!

I’m devastated. But not for the normal reasons. My heart isn’t really broken as I know I dodged a bullet 
But...
I tried to leave this guy SO MANY TIMES and he would go crazy and threaten to kill him self and tell me how I complete him and he hasn’t been around as much because of work and he’s doing it for us and blah blah blah. 

Anyway I’m mad because 
I tried to leave and he wouldn’t let me because he “loved” me. 

I decided to inform the wifey that hey, I’m his fiancé. 

She said not to speak to her unless I have proof.

AITA if I write her a letter and include screenshots that are dated to show her the proof she wants? 
I want to just have them in an envelope and I will have someone take them into her work to drop it off for whenever she comes in. 

He swore there was nobody else and then married someone while still planning a future with me and sleeping with me.