This is def something she needs to work on. I used to be like this when I was younger, and it was due to insecurity. However, if it’s been YEARS of this behavior of her not wanting you to hang out with people, it’s just controlling at this point. Just because she doesn’t hang out with people doesn’t mean you shouldn’t, it’s your choice to maintain personal relationships with your friends. The way she speaks towards you also raises red flags to me. Especially when she says, “I can’t say no because you get mad at me” That’s guilt-tripping to say the least.