Is it normal for couples to split the bill on an anniversary dinner?

My boyfriend and I are celebrating our 2nd yr anniversary. He assumed we were going to be splitting the bill for dinner. I don't mind and reasoned with myself that since we're celebrating the both of us, it makes sense we would split the cost. But now I'm second guessing things. What are your thoughts on splitting the bill for anniversaries vs. leaving this for the man to pay?

Is it normal for couples to split the bill on an anniversary dinner?
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