Don't talk to her family about anything regarding the relationship or D. In my mind that is pursuit, and definitely not NC. You know that it is going to get back to her. If your SIL is supportive, simply thank her for her concern and let her know you don't feel comfortable talking about it with her. You don't need to alienate her at all, but she is NOT a person to confide in.
W 34 Me 42 Married 7 years together 8 0 kids 1 beloved dog BD 4/6/2018 I moved out 4/7/2018 I moved back in alone 8/05/2018 I file 3/06/2019 D official 5/7/2019
