Aw man
I have been asked this before. the boys are right on the money here. Usually she
1. Low self esteem
2. thinks your outta her league.
Or possibly-
Has low IL, and is trying to subconsciously push you away.
It could be either one or a combinating of all three. When this happened to me with a HB 8 I was banging about 3 years ago(dam, almost to the day) it was a combination of all three. thankfully, I seen threw her BS and i didn't really like her much anyway.