Is it ok to be concern about this type of girl?

ok. A question for the guys. Will u find it ok if your gf is really tough? i mean she is good at close combat. She's a cheerleader plus she learns mma. She's really flexible and she knows how to literally hurt people. Perfect combination of fighting. I know this isn't something to be concern about but it kinda disturbs me though. Like for example if i got beaten up, then my gf would come and protect me.. its kinda weird. I know how to perform self-defence but not really that good in physical action... but i know my gf is. Should I upgrade myself just for the sake of being better than my gf?