text: why did she have to kill my cat??????????? my gf came home to find me accidentally sleeping with her sister she then picked up my cat tiddles(rip) and threw him out the window to his death! she said she thought it was my kosack hat i want to beleive her and really need an empty so what do i do????? she is sadistic and heartless.  she's lying if she's telling you that she didn't realize what she had in her hand was a living, breathing, struggling animal.  cats don't lie inert while people pick them up and carry them to a window and throw them out.  the cat would've moved around in her hand(s).  she's a liar and cruel.  if she will treat a helpless animal like that, how do you think she'll eventually treat you?  that being said, "accidentally" sleeping with her sister?  come on!  she should've thrown you out the window.