Is it healthy to fight with my bf?

I’ve been in a relationship a little over three months and things are going well! We’ve never fought, he’s respectful of my boundaries, and there’s a lot of open communication when we’re troubled by something. But every time I see relationship advise, a lot of people swear that fighting is a normal part of a healthy relationship. Is there something missing in my relationship because my boyfriend and I haven’t fought yet? Is it normal, or am I just worried about nothing?

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