Here is the thread for my background info:
http://community.babycenter.com/post/a51558619/silmil_tried_to_hijack_shower_ud_p2_4_8_13_14_27_30-_foo_drama_34_pics_38-39
I just wanted to do a check up since my last thread to make sure I am doing this all right. If you remember or aware of my story, then what I write will make sense, if not here is a little background and you can get the full background from the link. There will be lots of triggers in this and probably throughout this entire thread.
My MIL and I have never really gotten along because she is a horrid bitch and I married the youngest of four childiren and the only boy. When I was 34 weeks pregnant, I learned my daughter died. I delivered Genevieve two days later. While I LOVED meeting my sweet girl, it was THE most truamatic thing I have ever experienced. MIL was terrible. Bitch cried more at my and DH's wedding than at Genevieve's memorial. She didn't want to admit that Genevieve was a real person and this was a real loss or even that DH was her father. She didn't think I cheated, but it was always my baby, not his. So she crossed a line, she couldn't uncross and I sent her a fabulously worded text, that I am sure DWIL would not approve of, with the help of DH and CO that bitch. That was last Februrary. We haven't spoken to her since.
The last time I updated my last thread, it was the end of July and I promised if anything else happened, I would start a new one...
DH has 3 older sisters, we'll call them SIL1, SIL2, SIL3 based on the order they were born. SIL2 has a learning disability and functions like a teenager. To the point of when she saw how much attention SIL3 got when she was pregnant, she went out and slept with a ton of guys to get pregnant. SIL2 lives with MIL and FIL. I digress, so around Halloween MIL takes SIL2's phone (I am assuming) and sends DH a message. She writes "Can u please text mom please that your ok but don't tell her that i asked u she's not getting much sleep think about u guys it's the holidays And she is missing u and OP too. DH says "You can tell her we're fine, but we are not on speaking terms with her or dad." SIL2 responds: Ok.
He sent me a screenshot of the conversation and we discussed how his mom probably wrote that because it sounds a lot like the texts that she has sent to us in the past. Also SIL2 always wants attentions so I doubt she would tell us not to tell someone she told us to do something, especially if she thought she was helping. We also don't think she would write or say the term "it's the holidays" especially with it only being Halloween.
So we don't hear anything again for awhile, and by awhile I mean a few weeks because on Thanskgiving SIL2 sends DH another text telling him that their mother has colon cancer because of some scar on her apendix or something or other. I had been texting with SIL1 the day before and she doesn't say anything to me. DH calls SIL1 and asks about the colon cancer thing. She says that it isn't a big deal, she has to get something removed and take some medicine. DH never responds to SIL2's text. Especially because we believe that MIL wrote it based on all the specific medical jargon that SIL2 wouldn't know. DH BH's. What is so annoying is that MIL is taking advantage of her DD's learning disability to violate our boundaries.
I tell DH he is going to have to tell SIL2 to not let his mother use her phone to contact him. The next time SIL2 tries to bring up his mother, DH tells her that he does not want to talk to her about their parents with him because he is not speaking with them and does not want any sort of update. She says okay. This was sometime before Christmas.
On Christmas Eve, we recieved a card with random gift cards from MIL and FIL. On the card they wrote 'Love, Mom and Dad". DH was extremely upset because it didn't say anything like "we're sorry" or even "we miss you". It was a thoughtless gift. It was so thoughtless that they spent $20 on postage to make sure it got to us on time. I told DH that we could either keep it or send it back. He said he wanted to send it back and be the one to write out the envelope so MIL knew that he was the one returning it and not me.
I was, surprisingly, not upset about them trying to send something. I knew she was getting desparate since we have not spoken to her since last February. Before things would upset me with her, now I'm like yep, so glad I don't talk to that bitch.
For Christmas, SIL1 bought MIL an ornament that had all of the grand kids' names on it, including Eve's. SIL2 sent DH a text about it and wanted to be sure that I saw it... Then she put it on facebook and MIL commented that it was "Mema's favorite". Granted someone told me about it because MIL is blocked. All I got out of that is that MIL and SIL2 think all is forgiven because SIL1 was thoughtful and bought her a gift...
Well, that was shattered when they got our return package. Ha!
The day before New Year's Eve, MIL sends my BFF a text that says, "Wow they really hate don't they. This is MIL and I hae cancer just thought I would let u know how cold OP and DH r". BFF BHed the message.
Last week, SIL2 sends DH two text messages that say that their mother is going into surgery for her cancer the next day, and that their mother did well in surgery and is in recovery. DH BHed the message.
I told DH he will probably have to set up an ultimatim with SIL2 since she is boundary stomping. He says he will the next time she brings up their mother.
I've talked with DH about MIL having colon cancer and I asked what he wanted to do. He still wants to CO. We don't know how serious it all is, and his opinion on it all is that it doesn't matter how serious it is because us losing our daugther was and still is serious and she acted like it was no big deal, so fuck her. <--- I added that last part, but that was where he was going.
Besides SIL2, no one has been a FM. They have all respected the fact that we CO MIL and FIL. That has been helpful because we figured there would be a ton of FMs.
I told DH that if he thinks she is crazy now, wait until I finally get pregnant again (been trying for a year now! 
). That makes me nervous. I am worried she will fly down here and show up at our house. DH has even said that he wishes she didn't know our address and if we move, she will not get it.
The plan is to continue to BH, and for DH to give his sister the ultimatium. Are there any other measures we should take? MIL is blocked from our phones and facebook.