Over baring Mother

OverBearing*So ive been out to my Mother for about 2 years ago. I don't usually talk about my homosexuality because i feel no need to. But my Mother wont shut up about it, like we cant even go to Target with out saying "my sons gay" like shut up. I don't even tell her when I go out with dudes cause she wont shut up about that either. for instance.I went out with a dude (Iv only know for about a week) and she all of a sudden all "my name went out with his boyfriend" and "my name and his boyfriend" in front of my siblings (whom I haven't really told). Its kind of embarrassing. What should I do.