I just had f3 deal with WillsisMe and cricket and they backstabbed me at the last minute, it turned out that they were using me so another housemate called Jarry could join their f3. So, if any of those 3 people ask you to join an alliance with them, say no because all they will do is use you to get to the end and backstab you at the last minute. That's how they work, don't trust them!(especially WillsisMe and cricket)
