I begin to hate her my mum day by day, is this normal?

Im 25, and recently had a argument with my mum who basically told me im nothing to her, as a teenager i always did her crap, help raise siblings and household chores, so when i went of to university (as i still managed to get good grades) i found my freedom. I met a guy we dated in secret (as he was english and i asian) it was serious, and i decided i no longer wanted to be trapped with a controlling mum always using her diabetes as a excuse to loose her temper! I left to be with him, she tried to get me back home, always guilt tripping me, and emotionally blackmailing me. I had his baby and i began to get along with my mum with the occassional argument here and there where she would give crap to my partner and blamed him for me leaving her! Basically she couldnt face i was with a white man, eventually 3 years later my partner left me, i remember him saying to me that i always listened to my mum and after seeing her would argue with him. We have both gone our seperate ways and she couldnt be happier! the only problem is, when i was emotionally broken she took advantage of the situation and had me move back home with my son! She is a really mean two faced person who twists everything to make herself innocent, she is a total interferring old bag!LAst year i met a lovely man, and are to marry she apporoves thank god! but recently she has been letting onto him how im no good for him, and trying to cause arguments between us. He is the best thing that has happened to me and noticed how my own mother is behaving like my enemy! So much has got on, but i believe if i had a half decent upbringing mayb she would get the respect she deserves! she is always wittering on about how she raised me well and i thru it back in her face, how she always picked up the pieces and how i humiliated her by being with a white guy! honestly i cant stand it here anymore, my partner is abroad and hopefully im joining him in a couple of weeks! cant wait to get away from this 2 faced narcissisct. All she thinks about is her own siblings neices and nephews and has her own kids at the bottom of the list, also she preaches religion! hypocrit, wish she listens to herself sometimes!