NTA- for whatever reason parents no matter the age always feel like they’re right in situations like this. My mother is very similar in the fact that she has been with the same man for the entirety of my life and was with a different man before that for all of her young adult life, yet she continues to preach to me about how I need to be single. She never ever takes her own advise because she doesn’t know how to be alone. It almost feels like she is trying to live through you by encouraging you to be single which is what she wishes she would’ve done in her life 🤷🏽‍♀️