The nerve of this woman during my husband's funeral?

My husband wasnt feeling good one day before work and I took him to the hospital where they told me he was severely dehydrated and they were going to put him in ICU overnight to push fluids and put him on the floor the next morning. He was doing ok that night but the next morning something went terribly wrong and he died. He was only 32 and Im 29 we dont have any children but we had each other. His mothers side said I killed him and requested an autopsy but cldnt get one if I didnt sign for it so I signed only because it was so sudden and to give them the closure that they needed. It took two weeks to have the funeral because we don't have a pathologist here and they caused problems the whole time. They decided not to come to my repast so they had their own which made people have to decide which one to attend.Three days later my husbands bestfreind called me and told me that my husband wasnt happy with me & wanted a divorce. Also that he wanted to take her to Mexico and 09 was suppose to be their year. My husband was my bestfriend and took care of the whole time we were married and still taking care of me now that he's not here. We did everything together and was very happy. People do horrible things all the time but if it was something why wait for him to die to say something? Seeing how much pain I'm even if it was true why not keep it to herself? This girl was in our wedding and I put her in his obituary as a devoted friend but to make matters worse she was at the funeral and found me to give me a hug! I want to drag her all over MS for this mess she's pulled. Am I wrong for feeling this way? Should I just focus on the good times with my husband and ignore the extra heartache she has caused? I've never been in trouble before but I dont care right now and I have plenty of money for bail!