Does 'not liking' or 'not commenting' on my any post in fb means she does not like me?

[Insanedoll509]

i have a huge crush on a girl. whenever i ask her for an out, she says okay. she is a shy type so we don't talk too much when we are in friends circle or group. i do chat with her a lot in fb. i get very much jealous if she 'like' the post and photos of other guys but she never 'like' any of mine. she has rarely like 2 or 3 photos of mine. however, i like her each and every post. i dont know what to do.. Girls, any idea?.. what could be the reason behind this kinda behaviour? i hope shes not trying to make me feel jealous :\

please help !!