Mothers Day

I spoke to my daughter Christy yesterday as she called to wish me a Happy Mother's Day. I haven't seen her since last July. When I was at her house I find that my son-in-law was still being the BULLY that he has always been. I became upset when I found out that he got made at my grandson (8 years old) and squezzed his jaws so tight that his teeth hurt. My daughter was not with them when this happened. In the past I have seen my son-in-law kick his children whenever they acted up. My daughter always said I was always over reacting. He still yells at my daughter and the children. I have researched his behavior and believe him to be a narcisstic bully. In any event I told my daughter about what her husband did to my grandson and also told her that the Nanny was aware of it too. So my daughter took my grandson to his physician to have his mouth looked at. The physician couldn't find any damage. My daughter told me she is very unhappy but doesn't know what to do about it.
In any event, after my trip to see my daughter in July, I wrote about the problems on Dr. Phil's website. Apparently my son-in-law is paranoid because he went on my daughters computer and read the emails I sent her (with a copy of what I sent to Dr. Phil), and he was enraged!! He checks her cell phone for incoming and outgoing calls and messages!
As a result of my posting on Dr. Phil (and he checks the website all the time) my daughter is not allowed to see me or call me.
So my daughter will sneak a call to me every couple of months. I don't care what my son-in-law thinks but it hurts me so much that she does not demand the right to see me.
A little background....My daughter and her husband live in a 1.5 Million dollar house, they both have very good paying jobs, they have all the perks of high income families, nannies, mercedes, expensive vacations, etc. My daughter was raised in a low income environment and her husband was from an upper income environment. I think my daughter was impressed by all this and I don't blame her at all. They have 3 children.
My son-in-law has always treated us with disrespect. He classified us as "simple". He is forever the bully with my daughter and the children.
I believe my daughter has chosen to stay in her marriage because she doesn't want to give up her lifestyle. I can understand that.
However, what hurts so very very much is that she allows him to tell her she can't see me. call me, or email me.
I'm not quite sure what to do about it.