"My in-laws aren't nice to me. I'm grieving and they rarely reach out to me. When they do, it is because they want something. I can't take it. Why do they act like this?"

Everyone experiences and expresses grief in a different way.  While we often think of sadness as an emotion that accompanies grief, many other emotions are a part of grief as well, such as anger, anxiety, guilt, relief and more.  Sometimes people are irritable and may take their feelings out on others.  Set firm boundaries with your in-laws that you feel comfortable with.