Be friendly without over doing it. Respond nicely to her when she talks to you but don't initiate lots of friendly conversations with her either.
The sweet spot for me in my sitch was when I was friendly when she reached out to me but I "acted as if" I was busy and didn't have a lot of time for drawn out conversations. I would be nice and crack a joke or two and then tell her I had to run.
I wanted to be mysterious, and not in a "I found another girl" way. But in a way that translated to I was becoming adventurous (think Bear Grylls). And I wouldn't give her too many details. I wanted her to wonder about me when I was gone.
You are still living with w, correct? You will need adjust accordingly and find your sweet spot.
