Im starting to think the theory that she decided she wanted to go with another group of people to check out the unofficial Burning Man scene makes some sense here.
She has been described as a free spirit, wants to explore and have experiences, etc... Maybe she agreed to keep in contact and that he would go off on his own. Once she left she stopped communicating and the guy freaked out and didn't know what to do? Maybe they both took some substances and she left him, they had a crazy bad trip? Maybe he's still on a bad trip? For certain people psychedelics can last a long time or even cause permanent changes, I knew a guy that was never the same after taking mushrooms 1 time! He was on a bad trip for weeks and forgot who we were and forgot who we was.
There are photos of cannabis on both of their IG's. < modsnip - BL’s social media is off limits> on Gabby's there is a picture of a burning joint being held up in the air inside a car in the 'Colorado' highlight story.