He passed away today of a major heart attack and l really didn't get along with him at all, anyway so my sister put out a heartfelt post on Facebook and everyone posted sad faces and prayers, but l hit the wrong button and it was on Facebook all day. When l got back on Facebook l had all kind of nasty post. I tried to explain it was a mistake, but my sister blocked me, so l can't get back on her Facebook to change it. She thinks l did it on purpose and dosen't want to ever speak to me again. No one believes me because l really didn't like him and was vocal about it, but l would never intentionally post a laughing face on Facebook and take joy in his death. What should l do?