I don't know any Marines who go around bragging about anything. They'll show you what they are if they're made to, but bragging isn't really their thing. I haven't known many, but the ones I use to play cards with were some of the best human beings I've ever known. Any one of those guys could have killed me with one hand- yet- they paid me if I won, and treated me like a human being.
Usually I am very paranoid- especially if I play cards with a tough crowd- but in spite of them being some of the toughest guys I've ever met I never had to ever feel like taking a gun with me to that game. Not even once.
The one I dated was god damned amazing, she had amazing presence. . What a hell of a lover. One time when she was coming back to the states, she didn't seem like herself anymore and wouldn't talk much. We never saw much of each other after that
I don't know if she met someone or if she had a bad experience somewhere or what
I'll tell you one thing- Marines have real honor, like all Americans use to. They don't need to brag to you or prove anything to you or anyone else. Treat them right and you got a friend for life- fuck with them and you better make a new hole in your ass so it'll be less painful when they do it for you (like a pilot hole before the screw goes in) because they do not fuck around.