Dream Of Someone Trying To Enter House

(This is the first night we got this person living out our house for 15 years who no longer needed to be staying here anymore.) but I had a nightmare of someone that was trying to come in our house and I keep trying to wake my bf up and shake him, slap him, screaming at him to wake up someone is coming and he just wouldn’t he was snoring soo loud and wouldn’t wake up no matter what I did and how scared I was. Then I would wake up back in my room and everything was fine just to come back to the same dream of me then in at the bottom of a pool looking up at someone staring at me then jumping in the pool and everything turned into slow mo of me trying to swim away and in the pool was my bf still sleeping in our bed with my dog and I get into the bed again repeatedly trying to wake him up and try to help and save me from this person coming for me.