TF, I don't see any issue with maintaining a good relationship with the in laws at this point. I am in the same boat, the in laws love me, value me, hate what their D is doing to me and our family. We don't talk about things going on, we just enjoy the kids together. MIL really enjoys helping me out with anything she can regarding the kids and house. The key is to just never bring up talks about W or the sitch and it should be fine. Just my 2 cents.