When cheating happens, it damages more than just the marriage. It also destroys “friendships” as well.
I have no problem questioning how Christian someone is who supports a Cheater over the faithful spouse while fully knowing of the infidelity. Minimally, they are NOT friendship material for the faithful spouse.
Further, such people have different values than I have. They view adultery as less problematic than the Bible does (and I do).
It hurts thinking of some of these individuals that I had once thought were friends. They sided with Cheater even after learning of the adultery. Nary an apology for getting the situation wrong prior to such a nasty reveal.
Yes, friends will be lost. Our closes friends were two couples of whom the man was his high school buds. Both very decent guys. But he got those couple friends, at least for a while. From what my son said they drifted apart because he devolved into a gambler, and drifted apart. Plus cheater moved to another city and joined another church to try to scam them. He got asked to leave by the preacher when he started making trouble in the church. Basically, he wanted the church to be run his way. Here is the funny part, he started going to school to be a preacher. Yeah, that crashed and burned.
I never even tried to maintain a friendship with those two couples, as I knew how that would go. I pretty much pulled myself out of the whole community. That is what I needed to do to move on. I stayed at my church for as long as I lived there, as they had my back from the get go; but eventually moved away.