<human>: Can you give me a shortened version of the text?

I'll (28, F) will try to keep this as on point as possible.

My boyfriend (25, M) of one year told one of his closest family friends that my last child was conceived via my being raped by my ex when said friend asked why I would ever have 3 kids. This is true.

He admitted to telling his friend himself, and said that his friend wasn't accepting his evasive answers, so he felt compelled to tell him the truth. He apologized to me for betraying my trust. At the time, I told him it was okay, that I understood because I know how this friend can be. Yet, I still feel betrayed. 

I had told my boyfriend in strict confidence about it, and he is the only person in my life I had ever told the truth to. He knew this, and I had asked him to never repeat it, unless he had questions for me at any point.

I don't feel like he owed his friend an explanation as to why I chose to have the number of children that I did. I'm also upset over his friend responding to the news of my rape by saying "You can't rape someone you're in a relationship with!". This friend also told my boyfriend that he believes I am using him, told my boyfriend's family that he thought I was using him, and it's apparently become a concern to my boyfriend's family. My boyfriend told me that he was extremely upset by all of this, and said he doesn't believe I'm using him, nor had he ever felt that way.

I had been nothing but nice to this friend, had done what I could to help him through a hard time, and had no idea that he had such a low opinion of me.

I don't really know how to bring this up to my boyfriend, though. Since he confessed this all to me, and I just shrugged it off at the time, I'm worried that he's going to think I'm just trying to fight, being emotional, thinking too much, etc.
<bot>: My boyfriend told the wrong friend, who unknowingly had a very low opinion of me, the truth of my youngest child's conception.