Is my girlfriend jealous? if she is, i want to push it as far as i can?

she tries to make me jealous on purpose when we go out by pulling her top down and making her boobs show. when i spike my hair, i feel way more confident, and i feel like i look waaaay better. when we go out, she says she hates when i do my hair and that she likes it natural, but when were at home she says nothing about it. is there something wrong here? by the way..im a guy