breaking up with bf to move to canada :(

i dont feel safe with him here in america and i have a place to go in canada so i have to break up with him to move :( im terrified of conflict and freeze up and stutter a lot when pressed so can you please give me some good points i can bring up to make it a little easier?? weve been dating for a year and 3 months now and ive always been scared of talking to him abt how im feeling bc he gets so sad hearing it that i feel like im ripping him apart..