what drama is this?

does anyone know this drama that was about a couple(the woman was named ashley/ashli/ashleigh) and she was with this guy who was being persuded by the other woman...who lied to him one time after he lost his memory and said they are lovers. and she also blamed pushing the guys mother down the stairs on ashley....i dont really remember it but i want to finish it aried around '04 i think on KTSF

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