Is it normal that my girlfriend forbids me to go out at night without her?
I am 25 years old, my girlfriend is 24. We are in a committed relationship almost two years. Once/twice a week, sometimes ones every two weeks, mainly on weekends, I want to go out in a night club with my friends (mainly single male friends or pairs, no single ladies). I always invite my girlfriend with me. When she can come, it is ok. But when she can not come with me, she wants to sleep or something, she is very angry at me that I go alone. She wants me to never go out without her at night, or at least very rare (once every month / two months). I have never cheated her before, I love her and I let her go out alone (she does this very rarely, but never calls me to go with her, she always wants to go alone when she is with her friends).
Is this normal for her to forbids me to go out without her when she can not come ( I invite her always )?