Is it normal relationship wars (playful)

So.. Is It Normal that my girlfriend likes to play mind games with me?

We basically been dating for 2 months and we play constantly.. I'm a biter (Yeah, yeah.. post your immaturity XD), i'll bite her cause i like it a lot. Also, lick her face cause it annoys her.
She talks to me in spanish.. and she knows i don't understand a lick of it.. and now she knows that i don't understand.. How can i continue this war? She mentioned to me.. You have your strength against me and i have my language against you. -.-