constantly say she is too busy every time you ask her to go out with you
and when you invite her to your place just to spend one night with you she use the same " i am busy excuse" and even claim you live far away while living in the same city as you.
being unresponsive when texting and calling, takes long to respond to texts or don't respond and when you call you get the feeling she is annoyed as she only give one or 2 word responses and hang up
never tells you her birthday
only use single responses when talking to her
refuse to meet your parents and family members