It’s hard to advise you because you didn’t tell me your age or your boyfriend’s age (Dear Readers: Please remember to include your ages in your posts for better responses from me! 😉 ), but given what you have written, I’m going to give you two pieces of advise. If you’re a high school student, living at home with mom, then you need to find a way to balance making your own decisions and respecting her desire to protect you, as a mother of a teenage girl. You can explain to your mother that you love her and love that she wants you not to get hurt, but that this path you’re taking with your boyfriend is something you need to do for yourself in order to figure things out on your own clock. You want to be able to be close with your mom, but you also need to have your own life and you hope that the two of you (you and your mom) will be able to agree to disagree and still stay close.
If you’re not a high school student, but are in your 20s and are living at home, my suggestion is that you find a way to live on your own or with other adult roommates before you start dating anyone so that your mom doesn’t have to be involved in your business. It’s hard for young adults to be their own people when they’re sill living under their parent’s roofs, so before you continue dating your boyfriend, move out of your mom’s house, set up your own place, and then live your life without a second set of eyes on you constantly.
I hope that helps!