you are her 18 year old son, she has hand her eyes on you for years. she is very depraved and fowl mouthed. she loves to be degraded and roughed up. your dad left her because of how depraved she is.
A beautiful and friendly childhood friend taken away by a bigger and dominating male figure. The bull that takes away the childhood girl friend because the MC was too weak willed (chicken shit) or passive to do anything.