The media do seem to be suggesting Amy has walked.
She's been the most shocking for me in terms of her behavuour, and across all the series. To be deciding Curtis is her future, she was going to marry him and have children with him, that she loves him, and then crying for three days is concerning unhealthy and abnormal behaviour.
There is clearly a lot that has been edited out and not shown, if she was removed from the house for counselling, and was crying for three days, then it's probably better for her and the other house mates she does leave.
I feel sorry for her, and I also feel sorry for Curtis. There was no way to predict she would dive off the deep end like this, and i think anyone would struggle to cope with someone you're in an early days romantic relationship with deciding they were going to marry you and have your children and that they had no future without you as she had done.
And to have to deal with that on tv, in close confines in rhe villa, where your every word is scrutinised and you can't really get away from the person must be incredibly difficult.