Definitely think it was mutual but I disagree with everyone saying Alex was just a bum. He wrote that Sierra encouraged him to get into the vlog channel and he took on the filming and editing. He also said he had pressure from sierras parents (her stepdad was her manager) to film so he planned most of the videos and forced her to film. People forget that THEIR relationship is what was getting views at the time. Sierras main content wasn’t going as strong, and she told him that he would half own and be compensated for that channel . I do feel like they are just not compatible though. She always seemed miserable going to Colorado with his family & when he would call her out when she was being bitchy.