Let me write some fanfiction.
15 people left in the house. 3 (Brittnee, Sindy, and Bobby) aren't voting. 15-3 is leaves us with 12 voters.
Sarah, Naeha, Johnny, Kevin, and Pilar come to the logical conclusion that it is in their best interest to keep Sindy. They figure that although Brittnee may have be aligned with their side of the house, it doesn't mean much if she can't rise to the occasion. Sindy actually has the power to win competitions. In addition, Sindy is more of a target meaning that if things do not go their way in later weeks, she will be the first to go. She's basically a buffer for them. They now have 5 votes to keep Sindy.
Sarah and Naeha try to convince Ashleigh and Willow to keep Sindy. Ashleigh and Willow are hesitant because they are in league with powerful men such as Zach and Bobby. However, they recall the fates of women in previous seasons who were in similar alliances. They recall that those women were usually the first to go once the alliance completed its goal or is exposed. The men aren't really here for them. Coming to their senses, they decide to save Sindy.
Brittnee is evicted on a vote of 7-5
Sindy wins the next HOH competition
Your poor fave getting evicted week 2, much earlier than king was evicted 
Same with Amber from BB16 
