Anonymous wrote:"Sally, it's neither of our places to judge or comment on why a marriage broke up. What's important is that we're both there for Larla. Can you pass the salt? This bean salad is out of this world!"
This, OP. Have a scripted reply like this ready and use it every time friend 1 goes on about the divorce. And always add a change of subject like this, immediately. Do not, do not, do not drop hints like "it takes two to tango" or you may lose BOTH friends--and deservedly so.