Spika,
Not sure if you will get my post or if the situation has changed for you. I lost my wife just over a year ago, so I am speaking from the widower side. Around 6 months after Celene passed, I began to long for the companionship that I had with my wife. I began to really miss the conversations, the opposite sex point-of-view, and the affection that was now gone. I struggled with the thought of another women as a replacement for my Celene. I was fortunate to find the support of this site and realized that until my heart was ready to share with another women, it would not be fare to the other person. In addition, I have a daughter that shared her opinion about me trying to replace her mom, although there will never be a replacement. Your mom may just be longing for a friend who can help ease the pain we spouses face when the one who made us whole is gone. If she is not part of a support group or a discussion group like this, you might look at the many resources Marty has on her site. Most of all, this is a tough time for you both and whether it seems like it or not, you are a very important part of her healing as well as yours. Grief has so many levels and they hit us all differently and at different times. Hugs and understanding.
Anthony