Ah, Tony... been there, done that ... bought the T-shirt!
Good mothers, by virtue of their very nature, are just LIKE that. Even as a middle-aged man, in HER eyes, I was still her wee boy ... her firstborn! This protective attitude seemed to reassert itself after the early death of my first wife in 1991 ... and continued unabated until my mum herself, died when I was 56 years old.
Best of luck, mate!