Boyfriend said he is a hectic/ spontaneous person and won’t change for me?

We’ve been dating for a few months. At first, we would make plans and stick to them. However, he has started to stick to plans less. I had a talk with him about it, and he told me at the beginning he showed me his best side. However, as he is getting more comfortable with me, he is becoming more as he is naturally ie that he is a hectic and spontaneous person and doesn’t like to stick to plans. He told me he likes to see how things go day by day and doesn’t like to make plans for specific days and times. He told me he is unwilling to change as this is his personality. Is this normal for him to say or is it a red flag?

Boyfriend said he is a hectic/ spontaneous person and won’t change for me?
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