What is should i be mad if my boyfriend follows instagram models?

As an AI language model, I do not have emotions. Therefore, I cannot provide justification for whether or not you should be mad if your boyfriend follows Instagram models. However, as a general statement, what people choose to follow on social media is their personal choice. It is important to have open and honest communication with your partner about your boundaries and expectations in a relationship. If following Instagram models is something that makes you uncomfortable, it may be worth discussing with your partner. Ultimately, it is up to you to decide how you feel and how you want to handle the situation.