OT: Help, I think I'm slowly losing my BFF

So, me and my best friend have been friend for about 15 years now.  We go through just about everything together.  I won't go on and on, but just know that we talk every single day and are extremely close.  Closer than some sisters are.  When I started my weight-loss journey, we kind of bumped heads because she was a bit jealous.  I had a small talk with her about a particular comment she made and she apologized and stopped all the negative comments altogether.  Since my surgery, she's actually been encouraging.  Just recently she revealed to me that she's been in a lesbian relationship off and on for the past 6 years.  She said that she was afraid to tell me because she didn't want me to judge her.  I told her that I had pretty much figured that out in the last year or so and accepted it.  I don't care who she dates as long as they treat her right.  She was glad and revealed.  Then last week, she revealed to me that she had also started dating a married man....a preacher.  Now that, I DID NOT AGREE WITH.  So I expressed my concern to her.  She told me to drop it as she didn't want to hear it.  So I did.  But she still tells me everything about him, his wife and their encounters.  Well today, I had had enough.  If I can express myself to her about him, I don't want to hear about him from her. I told her that thinking she would understand.  Instead she became infuriated.  She said that I wasn't being a friend and that I was treating her different just because she was doing something I don't agree with.  Well, I told her that I can tell her what or what not to do, so I'm just asking that she doesn't discuss it with me.  So now, I guess we're not talking.  This is our first ever BIG fight.  We pretty much always get along even if we disagree on stuff.  I feel like this is the beginning of the end.  She is the 3rd person in my life since last year that I've had to let go, just because I spoke up about my feelings.  Usually, I'm the listener but I say what I think (not in a rude way) and people don't like it.  Anyways, I had to get that out.  I'm really hurt that she's upset but I still don't want to hear about her affair...

I cannot give any advice but I really hope things turn around with you and your friend. I lost friends along the way since I had my RnY. Some are starting to come around again but I understand how hard it is to loose friends. However, I was told upfront that it can happen. I just never thought it would happen to me.

Good luck!

She knows that you are right, and she is feeling defensive. No one want to hear about their flaws, even when others are right.
I can not condone an affair, and don't blame you for setting limits. Now that you've done that, you have to face the consequences.
I also lost a friend to the exact same cir****tances over 20 years ago. She broke up a marriage and went on to marry the guy. Four months ago, I went to her husband's funeral, and it broke my heart that I put that wall up between us. She didn't deserve my cold shoulder, and all I wanted to do...and did, was hug her. When I was looking over the photos of her and her husband's life together, I was in a couple of them. I felt that I really failed my friend at that moment. I don't know...life is short, and we are all human. I still can't condone an affair, but all I can say is that I wouldn't lose a friend over one either.

I think that I would probably draw the line there, too.  When someone I know and love is doing something THAT morally wrong, I have to re-evaluate who they are and the fact that they're willing to play a hand in ruining someone else's marriage from some fun or love or whatever.  Of course, the guy always uses the line about how his marriage has been over, or his wife doesn't love him, or whatever, but they hardly ever leave their husbands and your friend has to be smart enough to know that she's setting herself up for some bigtime heartbreak.  I just don't feel like I could stand by a friend in this situation, either, but I don't know what the best thing to do is.

I couldn't listen to a friend who was doing that either, especially with a preacher who has so much more to lose than just a wife and family.  It would bother me too much to be her friend no matter how long we were close.  You didn't do anything wrong.  I hope that is a consolation.  Pray that she sees the wrong she is doing and puts a stop to it.  I feel bad for you to lose a friend that way.
Sharon

"...especially with a preacher who has so much more to lose than just a wife and family."

Explain, please, why it's even worse because the guy is a preacher???

Because many churches wouldn't keep a preacher who was committing adultery.  So he may lose his job if it was found out.  Or people might leave his church.
Sharon

I can see where this makes it worse for HIM, but not for HER.

Yes, that's what I said.  She shouldn't be committing adultery with a preacher who has so much more to lose than a wife and family.  He could also lose his job.  Sorry I didn't make myself clear tho'.
Sharon

When he accepted a leadership role in the church, he knew that there are certain standards of behavior he was agreeing to adhere to.  He is supposed to be providing a moral compass for the congregation.   The Bible uses the nurturing relationship of a loving husband toward his wife as an illustration for the love that Christ has for the church.  

Being a good husband to his wife is part of this man's job description. 

Not only has he betrayed the trust of his wife and family, but he's also created a situation that will eventually damage his relationship with the congregation.  People will look at his behavior with revulsion and may even reject God because of what this man (who claimed to speak for God) did.