I'm going through a divorce right now I have been separated from him since September 23. I have a really close friend that I have had aajor crush on before I had even met my husband. The only thing that's held me back is he dated my little sister 11 years ago.

When she came to visit [she lives on the west coast now] I had joked around about being with my crush and she looked like I killed her dog and her cat... but why? It's been over 10 years and we are together but I have to lie about it.

We are finally happy together we have been wanting this relationship for years and he's seen me at my absolute worst and still accepts me unlike past partners. We have history and we are getting to actually know each other romantically and as a person even.

Am I a bad person for keeping this a secret from my sister? Our parents have even told me she'd just have to deal with it but I'm scared to tell her...

EDIT: this was back in high school when they were together and she has cheated on him with multiple people. I am 27 he is 26 and my little sister is 25. We are all adults and I've had an attraction towards him for years and visversa. He has zero feeling for her and she has zero for him