Of course he noticed you running away from him all night. He saw you dancing with a different man every time he tried to approach you, he saw you going to the bathroom every time he got up from his table, but he also saw you frowning at him every time he tried to dance with another girl, just to make you jealous, of course, although he wasn't sure what you wanted with him. First you break up with him and you just ignore him all night, but you look at him in a judging way every time he dances with another woman and you whisper with your friends, staring at him.
He's not going to leave things without talking to you, that's for sure, he was tired of just having to see you from afar, sitting at his table drinking whiskey with his hit-men. So, when he saw you close enough to him, ordering a drink from the bar, he did not hesitate to approach you from behind, adjusting his suit and slightly biting the habano between his teeth, frowning slightly and walking confidently towards you.
"you giving me the cold shoulder all night, baby?"