I had forgotten that JA said she would be contacting a lawyer when texting/emailing/chatting however it was
This segment on dr Drew is interesting with the Hughes
https://m.youtube.com/watch?v=SgmHSxIlXMU
There's a theory that Travis was so upset because she was threatening to go public with the phone sex recording that she made. The lawyer reference would make sense since she recorded him while she was in CA and that's a two-party state (I think). Instead of bringing him in line like she hoped, it only made him more determined to get away from her. As a free agent he would be very dangerous to her reputation, which she cared about above all else, so he had to be silenced, permanently. I think the Hughes even said they believe the fight was mainly about the phone sex recording.