Did you talk to your husband about why you were moving to the other room? Did you guys talk about how to keep your sex life active with separate bedrooms?
What other complaints did your husband have in your marriage?
Sex is a hard issue to address once the spouse has turned into a walk away, so you might need to start 180ing other things first.
Me: 44 H: 44 Kids: 20, 16, 16, and 10 Together/Married: 22 years H announced he was emotionally detached and considering D: 4/4/16 H announced he is going to try to stay and reconnect: 5/1/16