Me and my girlfriend don't fight. Is that normal?

I've been In a relationship with my girlfriend for 6 months now. I've known her for 2 years before we started dating. Me and her have a perfect relationship we never fight. Like we have never fought in the 2 years and 6 months of me knowing her. Not even once. We have never gotten in any argument in any way of anything. We talk daily. I just want to know if not having fights is normal.

Me and my girlfriend don't fight. Is that normal?
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