When I was younger I thought of my dads DP at the time as my step mum. They split and I still was close with her. She was in a new relationship and he abused me when I was 15. Long story but I then didn't really see her for years.
They split a long time ago and I have just found out that it is because he got a 17 year old pregnant. She told me this last week. I finally (after seeing her at a party and I was drunk) told her that I really want to talk to her before she moves away. I think she knew what it was about as she said "oh no". I said I need to know if she believes me (I didn't need to tell her about what, she knew). She said that he was a very good liar and very convincing. I assumed she didn't believe me at the time as she went on to marry him.
I think she misheard me as I wanted to know if she believes me now, not back then. After she told me what a good liar he was, thats when she told me the reason for their split as I told her I was always worried it had something to do with my younger step sister (her DD).
It was easy at the party as I had had a lot to drink and I always have far more confidence, I rarely drink though.
Now I don't know how to approach it but she is moving away in a month but its something I need to get off my chest. It has been on my mind for 15 years.
What should I do?