I forbade something for my (now ex) girlfriend
What did you forbid your girlfriend from doing?
Her freedom, her sitting in the same place every day and eating her dinner with a book.
Even though she was your gf, you did not have right to make her do whatever you want. No wonder she's your ex now.
It's not like she was reading some 50 shades book. If I force her, I get to call her obsessed.
Just because she is your partner doesn't mean you can control what she does.