the dream was about my mums ex-boyfriend he was going out with my best mates mum sally she lives round the estate near to where i live i saw them together at her house and was trying to warn her that he was no good for her and what he used to do to my mum he kept being nice to her which i was explaining was an act and to prove it i started to give him the mouth then a little later i ended up in the car with them and he started speeding so i jumped out while the car was still moving then i shouted a name at him then he turned the car around and came after me i jumped up on to the little wall and he kept diving into the wall

then i woke up

please tell me what this means