If he did and told about it, then he is low.
If you want women to secretly come to you then never let anyone know you had sex with them, deny it if friends ask you and eventually females somehow figure it out and you become the relief valve for the group.
I’m a Massie supporter but him bragging to his new girlfriend that he had sex with Boebert was a definite no no. I mean you might mention it to your guy friends but no woman want to hear you bragging about who you slept with.