I know everyone is suggesting to change your password, and while that is a very good idea, if your ex is computer savvy, it may not help. My cousin had a bad breakup with her last ex, he was an IT tech. He actually installed a program on her computer that traced the keystrokes on the keypad. Not only did he end up with ALL of her password, he got her children's too, and could see EVERYTHING any of them did on the computer. Fortunately she has another friend who was able to find and remove the program, and trace what he did, so she had the proof. He ended up facing some serious stalking charges, and she was granted a restraining order, but again, she had proof. In order to install a keystroke program you have to be at the specific computer, however you don't need to be at the computer after it's installed to spy. If your ex has had access to your computer, I would suggest to you that if you know anyone who is a whiz at computers have them check your hard drive for this type of program.. If you don't know anybody then take your computer to a tech and pay the fee. It is well worth the money. If he did do something like this, and you can get the proof, it's just more for you to bring to court for your case. It's also a good idea not to let him near your computer.