You said you've been DB'ing for a month, but how long has your sitch been going on? How long has your W been cold and distant? You may be seeing the distance/ pursuit dynamic, once you started DB'ing (and I assume giving her space) then you quit pursuing, so now she's reversed course and is pursuing you. If that is the case then you want to keep DB'ing and maintaining some distance. If you start pursuing her she will go right back to distancing.
