Mmm difficult for sure, I think it depends allright, it can be akward to be in a position when you are friends with both as whatever you do you're letting someone down unless you stay out of it completely. If you do know something you are then involved whether you asked to know or not.
Certainly, as V says, you should talk to them. If they're a good friend they should be straightforward with you or they're not a friend really. Suppose it also depends if what they say makes a difference to anything you do, cf proceedings, lawyers etc as well I suppose.
M:44, W:46, S:10 M 13 years, T 15 BD:23/7/2014 W/S Moved to MIL: 23/7/2014 My new place: 21/11/2014 W/S back to flat 22/11/2014 W coming closer, talking 4/2015 Piecing 5/2015 Moving in again 6/2015