Mother in law hell and grandchildren?

Called me by his ex girlfriends name, went on about a girls name and how nice it was and who happened to be another ex girlfriend of his. Told me about numerous 1 night stands and how she would often find stilleto shoes outside his bedroom door. Ruined my wedding plans by moaning about everything. Moaned that I wanted one of the bridesmads at my mum and dada house on the morning of the wedding for picture so she never came (she was a child bridesmaid). Saw me and my husband crying out eyes out the night before our wedding and then went out for a meal with her family whilst I spent the night trying to de puff my eyes for my big day. Called some of my cousins names pikey and they are children. Then decided to not turn up to my graduation ceromony. When I fell pregnant I was extremely unwell with hyperemisis which is excessive sickness and failed to do anything to ist. I was in bed for 10 weeks and sick till my twins arrived. �I was then told that I was putting my twins at risk of going into a coma by feeding them as they were not being fed enough milk. She saw me drag myself from a sofa to make her a cup of tea after I had just had a csection. I was then put in hospital with an internal bleed and she attempted to take the twins home with her 70 miles from me when all I wanted was to see them. She then made it hell by trying to wake my twins up when I was trying to get them into a routine she used to speak loudly and pull blankets off of them. She announced that I was giving my daughter colic with that ' stuff' and informed me that she never thought I was the one for her son. She then came to their christening and left early and cried when I gave my mum some flowers as it embarred her in front of her friends that she didn't get any grrrr. One of my twins didn't take to a bottle so she took one out of my bag which was my other twins expressed milk and tried force feeding her. They have just had their first birthday and she came didn't say a word to me but slagged me off to my friends. Oh and on their 1st christmas I was moaned at for only spending 4 hours at their house that's not including the 2 hours journey there and Back and the fact I had just come out of hospital. And to top it off I made it quite clear I was buying their first Xmas outfits. Something I was really looking forward to after my time being in hospital and guess what yep she brought them outfits! I don't want anything to do with her. She never rings me to find out how her only grandchildren are but wants all the glory. My husband doesn't seem to get it. I have never had anyone like this in my life and I don't want her near me. She has turned my father in law against me and basically told him a pack of lies. Am I being wrong denying her access to my precious babies!? Please advise honestly what would you do? there is so much more I can tell you but think I've wrote enough.�