Basically been in a relationship with this girl for about 9 months. We see each other twice a week due to my university studies and me going to the gym 4 times a week and on the other days I like to see my friends. She always complains we don’t see each other enough in which I think is a good thing.

Basically a few months back a ex tried to contact me in which my current girlfriend saw the message from her and got quite jealous. I basically ignored most of her complaints and gave her indifferent answers. In regards to the ex I did not respond.

A week ago she told me she had been receiving messages from another boy called ‘Dan’ when she told me I kind of just kept silence acknowledging what she said but instantly changed the subject.

But Last night she broke down and told me she had made this guy up to try and get a reaction from me and she thinks I don’t care about the relationship because I never show I care.

Do you think this kind of behaviour is justifiable? Or should I break up with her?