I would stop hanging out with her and trying to be her 'friend'. Nothing good is going to come out of that for you. She needs to feel the loss of you not being in her life.
My DB coach told me to try to be her friend right now and even do things together (either alone or with the kids). I hear a lot of advice from both sides of that.
The DB coach probably has better insight into your sitch so I would follow the advice. I think if there's no OM, then being friendly makes sense given the trouble in the MR is probably due to some lack of intimacy or closeness. I also think you can be friendly without pursuing the W. It's a balancing act.
