SIL

My son was at my sister-in-law's house todayand he told her and her husband that I don't like her. So she asked DH about it stating that she's my SIL and I should like her. He told her that I don't like anyone since I lost the baby. He explained to her that I 'm still grieving. Well she didn't understand why I don't like her and said she empathizes with me but she doesn't understand why I'm still such a mess. Well there's one good reason to not like her! How can she say that she empathizes when she never said anything to me or hugged me after my m/c last year and after I lost the baby 3 mo ago. To this day she hasn't asked me anything or even brought up the baby. She left the hospital in a hurry because she didn't want to see the baby if it just "fell out" of me. Then the day after I came back from the hospital she came over asking us to babysit her 1 year old daughter so she could go play volleyball. What is wrong with her?! Dh agreed to watch her but I was furious and fortunately for her I was still taking heavy pain pills so I was calm. She said she figured since we were home anyways we could watch her. We weren't home on a holiday! I was still healing physically from labor and hurting like hell from losing my daughter. Then she added that she thought that bringing her daughter over would cheer me up since I just lost mine. OMG!! I could go on forever about this woman.
Two weeks later she called my house, I answered and she said "Oh you're home? I thought you were at work." I sid, "No I get 6 weeks off for maternity leave." Her response was, "Really? But you don't have a baby." 
 I guess I'm just angry at the world right now, my baby's due date was yesterday and AF arrived today so I've been crying for two days now. I don't need to worry about her feelings, her kids are both alive.