I'm I still in love with him?

This days I feel like staying alone. For the past 3–4 weeks anytime my boyfriend calls me or text me that he wants to see me or hang out with me, I just get annoyed. Sometimes if we start talking for more than 2 mins, I feel stressed, tired or have an headache. But I still feel an ache anytime he talks to a girl. What is wrong with me? Do I still love him? But why do I get annoyed?