It sounds like she's just very lonely and is still trying to baby you, which although annoying, doesn't sound like it's done out of ill-feelings or harm to you. Matter of fact she's trying to keep you safe, albeit in a very controlling way. My dad told me that his mother would "talk down" to him even into his 30s, she was a very feisty woman who was harsh and authoritarian in her own old-fashioned (loving) way. He said he eventually had to sit her down and tell her that he was all grown up now and didn't like the way she talked to him like he was still a child. He said after that talk, she never treated him that way again. I guess she just needed a reminder. Maybe this is what you need to do with your mom as well. And consider yourself lucky - my mom couldn't care less where I was, who I was with, or what I was doing.