Is it normal for someone to have different personalities?

I met a guy online and we instantly clicked coz his personality was like my bestfriends but then after talking for few days his personality changed and he is like I have different personalities and all is real, you’re lucky to see this side of mine, then when I told him to have either one of the personalities he was like as a friend you should like all my personalities and u can’t control me, I said that so that it doesn’t confuse me and I genuinely wanted to get to know the real him, I don’t know what to do, I feel like he faked his personality when we started talking so that we get along and now he is being himself, pls give me advice should I stay friends with him?
Is it normal for someone to have different personalities?
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