I did this twice with a chick i was dating for 6 years with 2 different girls which were her friends.
I got hell for it afterwards but I kept ignoring it and as time passed she got over it.
Then I broke up with her (not because of any of that) just because she was a bitch.
I see her friend pretty much every where I go and we dont even say a word to each other.
I personally wouldn’t try this with your wife or someone you intend on marrying. My .02