My mother lies sometimes too. She is emphatic that she is being honest and when I catch her telling me lies, she still denies it. At least, your mother finally honed up to the truth and admitted she lied. Parents are people and are not perfect. Your mother is more than just a lie here and there. I would forgive her and just realize she had her reasons unbeknownst to you and probably make no sense to why she lied. My mother is always right in all situations. OK!! Whatever. However, I still love her because she is my mother who took me back after I was homeless and stayed with me while I was hospitalized and allowed me to come home afterwards. So, petty lies here and there from her, I forgive. She was a true friend when I truly needed one. Enough said.