I told on my sister

My sister went out with her lover today. She stopped by my house briefly to park her truck. Her husband thought she was with me all day at my house. He called me when she got home. He asked if she was here. I said she was here for a little while.
I hope she doesn't get mad at me.
He had found a card from her boyfriend that's what made him suspicious and led him to call me.
I wonder what's going on at her house now.
Her husband is such a nice guy that I felt like spilling my guts to him about what has been going on for the past 6 months. Poor guy. He is such a good guy and is trying so hard for this marriage.

Life has many difficult lessons to learn.

oh...that's so sad...if I were you, I would try to stop my sister from going after the lover....I know it's a difficult thing to do and she might not listen to you at all, but I think it's worth trying it!

If he is already suspicious I would not offer any more information to him (in order to save your relationship with your sister) as he is going to find out what he needs to know in time due to the fact that his mind is already thinking.

Well, I talked to my sister's husband again and told him some more. My sister keeps lying to his face. I went over to talk to my sister today. I told her I talked with her husband and told him some things. I was happy that it went well. She didn't get mad. But from here on out, I'm staying out of it.
I did try, however, talking her into staying with her husband. I said she'll regret it someday.

I'm sorry that you are being put in a really tough place between the two of them. It sounds like the married will crumble in its own time if she's cheating on him. The truth will come out, just remember she's the only sister you'll ever have, Men, Husbands and BF and lovers may come and go but she's the only sister you have. I hope you can help her find out what is the best thing for her.

Shame, shame, shame on your sister for putting you in the middle of her unhealthy love life. What you ultimately decided to tell your BIL is your own concern, but I’d let your sister know in no uncertain terms that you will not be a part of her schemes.

I agree with AAAAA. She has no right to ask you to lie for her. If she is that unhappy in her marriage she sould seek counseling or let this man go. I think what you did was very brave and I applaud you for it.

I had a friend once ask me to lie for him so he could be with his "lover." i told him he had a better chance of seeing God than that happening,(me lying for him), we are no longer friends.

when I was a teenager I was asking my friend to lie that I've been with her and then I was sneaking out going to my boyfriend's home!
once it got my routine, she got upset and told me that she doesn't like it and doesn't want to get involved at all and told me if my mom calls her, she will say that I'm not with her.....hehehe....I stop asking her, but I kept my friendship with her...although, I was pissed at her!!!!

You have already gotten involved. I hope your sister see's that you are right. I hope this chapter can be closed. Cheating hurts everyone involved and causes great pain for everyone it touches

This is an ugly mess that you're sister shouldn't have expected you to cover her decisions to cheat. Now that you've told her husband about that other lover I think it’s best for you to take a step back and allow them to deal with their marriage. You're not responsible for your sister or her husband. You don't need to be there and have them vent and cry to you. It’s a lot of stress no one needs in their life especially when you're not involved.

Lying for a "friend" makes you a co-conspirator.

I agree. The reason the wife is always the last to know is because people don't tell her. How being part of the lie is staying out of it I'll never know.