Financial talk

I've been married for a year and a half. However, things haven't been the same for some time now. My wife is spending most of her time working -- and when she is home, she is too tired for conversation, intimacy, or anything else. She comes from a poor family, and ever since I've known her she has striven to make something out of herself. She is dedicated to career and making enough money to never be poor again. But, at times she is so focused on these goals that it seems that nothing else matters. Whenever I talk to her about anything other than money or savings or the house we just bought, she pays me lip service. It has been particularly difficult lately because my mother is dying and I feel I have no one to talk to but friends. I have tried hard to understand and be loving, but she seems aloof. I have talked to her about how I feel, and she'll be more attentive for a short while. Don't know what to do. I feel like I'm falling out of love. Any ideas anyone? We are both young by the way -- me, in my mid 30s, my wife in her late 20s.