Hate and Love: A Complicated Relationship

I hate my girlfriend. I know it sounds bad, but it's true. I hate her. I don't know why I hate her, but I do. She's perfect for me in every way and understands me more than anyone ever could, but I can't stand her. I hate calling her, and when I do I so badly just want to hang up and go about my day, but whenever I see her in real life I get all nervous and I get butterflies and I can't help but smile. Whenever we hang out I feel on top of the world, but after not being around her for a while, she just irritates me for no reason. Hate is really a strong word, but I can't say dislike because I like her so much, but I hate her, even though she did nothing wrong and nother has ever happened between us. Does anyone understand?? Or can anyone explain what this is???