How to know if he's the one?

So I just started dating and it's all fresh and new to me I am 25 and he is 26 and has dated before me which was a long toxic kinda realtionship with him.

So everything is good he is nice and kind and respects me kinda appears charming. despite all these things which look good on the outside right. how can someone tell if they are the one? And how can you tell if they love you or like you enough? and just don't find you convenient?

He has got a lot female friends to which he interacts , chats etc?

They say you know it if he's the one or there are signs which tell he is not maybe your body trying to tell or something? I am too naive can someone tell me how to tell? cuz I am just confused?

How to know if he's the one?
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