Terrible dream.. what do you think this means?

lastnight i had a dream that a few of my family members and i was having a get together and my bf came by, when he came it seemed lik everyone in the room disappeared and me and him started arguing and he stormed out of the house, upon him leaven the room appeared to have filled back up again with people and i felt something wrong so i followed him outside, he didnt even make it to the mail box before i saw a suv full of guys pull iinto the house that was across the street and before i knew it guns were pointing at my bf and all i saw was the flashes from the guns and his body fall to the ground. it was so wierd because i was on the porch away from the happenings but i cud actually feel like i was being shot multiple times, it freaked me out and woke me out of my sleep ((breatheing hard and sweating)) i couldnt go to sleep for the rest of the night. any ideas on what this might mean, im really worried and checking on my bf alot since the nightmare