I think Ginger really hit on it by alluding to the distance card. I fear that being too clingy and needy will send my W into distance mode. Though her attitude towards having to pursue is so much more different than it was in the past. I really wonder if your SSRIs are causing her to be "numb" to her feelings as well as the feelings of others. I know I've talked about before how she doesn't have the same empathy for others that she did before. When I have mentioned this to her she chalks it up to be older, but I tend to believe that most people become more empathetic as they mature, not less.
So while I can certainly pursue to the point of her distancing (mostly through clingy, needy behavior) I do not believe I can engender any pursuit behavior by distancing. It is a strange place to be emotionally.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018
