I know what not to do! LOL. I noticed this when W started spending all of her time witht the friend. It bothered me a lot. I made passive aggressive comments about it and it slowly blew up.
Funny thing is I have taken time since then and looked back. i wish i was more of a friend to W's friend and that may have helped.
I think she knew it bothered me back then and stayed away.
M 37 W 34
T 12 M 8 D 7 S 4
Need break 4/12/15 W no ring 7/7/15
Separate room 4/12/15 Separate living suggested 8/15 W moved out 11/1/15