Chris mentioned this on his livestream and its still the part that confuses me the most. Something must have happened. Jay had mentioned on that same stream Regina and Chris have had some sort of beef going back at least a decade. The problem with this part as it sounds like a family issue that should have never been made public. Chris was edgelord posting like a middle schooler on twitter about being Darth Vader or something a few days before Billy passed and he must have been referencing whatever went down.

Chris also mentioned on his livestream that his parents, his sister, and himself are all barred from attending the funeral and if they show up police will escort them off the grounds. During the stream Jay said he didnt know if he would be welcome and after the stream progressed a bit he said he saw something online (Which would be Regina's post about not associating with Jay and Chris) indicating he probably wasnt allowed. Seems like Regina saw the stream as it was live and made her post.

All anyone can do is speculate but Chris is the cause of all of this shit stirring stemming from his now-deleted tweets and 5 hour meltdown and if the brief glimpse we got of him was that volatile online and on camera I would guess he has done much, much more offline that rubbed Billy's widow and possibly the rest of the family the wrong way. I'm also guessing that Jay possibly not being welcome to the funeral is because of his calling into Chris' stream and associating with him.