Iphone reported lost/stolen?

My ex boyfriend reported my iphone 4s stolen/lost and changed everything on it so now I can't use it and it was in his name so there's nothing I can do about this. I tried jailbreaking the phone but i'm not sure if it even worked. How can I activate this phone is there something I can download or SOMETHING to get past this? I'm really upset about this and need answers as soon as possible!

If he was the one to purchase it i'm afraid your out of luck.

Since he did report you're phone lost or stolen since it's in his name the service provider is going to be blacklisting it now meaning that it can't be actived and used by any cellphone provider and it's going to useless expect for using it for Wi-Fi only so you are out of luck and will have to open you're own account at some cellphone provider and buy a new phone