I think you got scared from seeing the most “aggressive” and “dangerous” side of him. However, like you said, that’s not the side he has ever shown you. Specially, a martial artist knows how to use his craft. Meaning he will most likely never use it against you but to protect you if any.
Of course! I’ve got a purple belt in taekwondo and jujitsu. Once my girl went to one of my sparring matches and she had a similar reaction… it’s just another piece of ourselves which obviously you will never be in the receiving end of. Do know, if he even tries to hurt you, his entire dojo or teammates will beat his 🍑😂😂😂😅