Yup!
This falls under the category of owner neglect/abuse.
Whether that neglect/abuse was done by the previous owner, or the OP, or by both of them, no vehicle manufacturer is going to foot the bill for those repairs–nor should they.
Note for the OP: If the previous owner was the one who abused the vehicle by never changing the oil, a pre-purchase inspection by your mechanic would likely have revealed that situation. I know that this is a very expensive way for the OP to learn that lesson, but hopefully it will help with her future vehicle purchases.