Thank you everyone for your kind words regarding my brother in law's passing.
DH did invite sd to the funeral, and i understand why. But i do hate it. I told him the night before to let her know that if she didn't want to, that it was understandable (in hopes that it would prompt her not to come). She decided to only come for the "family viewing" but to not stay for the entire thing. And she came and did her fake sniffles, but saw that nobody (including me) payed her any attention, and she left within 20 minutes. She came over for a hug from me and i pretended to not see it, and went to "find my mother". I think DH and sd might have noticed i completely ignored sd, as after we passed the casket, DH took sd to the other side of the room, as i sat with my mother (my sister was taken to a separate area after she was allowed into the immediate family viewing and want brought back into the room until the actual funeral took place).
DH keeps taking about how sd hadn't done well with death since his dad passed away... but she literally doesn't seem to have cared one but about anyone passing. She does fake sniffles here and there, but you can tell they are all fake. I'm glad she didn't get a chance to see my sister or her children. The ones that are grieving the most do not need to be subjected to her or her attention seeking antics.
Sd has been in town since Friday, but hasn't made any effort to see/call/text DH, even though she knows DH is very sad about this passing (DH and him were really close). She just been held up at her mother's house. As much as it hurts me seeing DH so sad, and his daughter not caring one but, I'm thankful sd has stayed away, I've not been in the mood to fake any niceties towards her.