Haley being okay with MC hooking up with Adriana and moving in with her are two very different things. As we saw with Lisa in the previous update Haley didn't react very nicely to MC*actually sleeping with another women that isn't her
Well, I don't agree with that. She was fine with Diane, Alana, Sandra, and Adriana. She does seem to have an issue with
Lisa, and that's probably story-relevant. But the rest she wasn't just fine with, she encouraged.
But remember that Haley wants to have a long-term relationship with the MC. Her brother. She can't have that, openly, without accepting some sort of cost. One of the ways she can pay that bill is with a beard.
Adriana is a perfect beard.