So Max was a bit of a failed model (has done random catalogue work...I've seen him on Nordstrom and Lululemon's websites modeling some of the clothes, but not on any ads, and no runway or editorial) and he hitched his wagon onto Jessica Clements, who was quite a popular influencer/youtuber/part-time model. They never clarified what their relationship was but Max basically became a manager/videographer/editor of sorts for Jessica and began travelling and living with her, and she would practically throw herself at him on videos and Max's behavior veered between flirting back and being annoyed at her.
After a while, he met Sanne and the three of them would hang out together. But suddenly, Jessica seems to have lost her marbles and quit youtube for a while, and they all unfollowed each other. Then we see Max and Sanne act all cute and coupley (insta-official) and Jessica releases a video talking about how she was involved with toxic people who really destroyed her mental health. Jessica does seem incredibly immature and emotional, but there was definitely a vibe that Max used her for exposure and met Sanne through her, and promptly ditched her to go after the "legit model" who walked VS shows before. To add to the injury, both Sanne and Jessica auditioned for VS a few years ago but only Sanne got a call back.
After Max and Sanne started dating, Sanne started her influencer shtick, and a skincare brand, and seems to have either given up modeling (or hasn't gotten any offers) and is now a full-time influencer whose channel is managed by Max. Max and Jason started some talent management company and Jason lives on Sanne and Max's couch. Odd bunch and all the men seem like hanger-ons. And Sanne has also signed with Ford and Elite but they both dropped her and she went back to her old agency (NY Models).
I don't know how true this is but the ladies on GG looked at the social blade of Sanne's yt channel and they suspect her of buying subscribers and also her instagram engagement is apparently quite poor for someone with so many followers, which suggests a lot of them are fake/bots.