She can be the sweetest yet she doesn't care or trust me?
I just started dating this girl who started as an one night stand. We decided to go for long distance after two months of dating, as she had to study abroad. I'm her first proper and real boyfriend but her past is a myriad of men, crazy sex, breaking points, celibacy, etc. She's only 18 and she seemed like she's lived longer than me (26), you can tell by her way of thinking that she's some sort of hybrid between ex wild child turned wise and mad genius.
Anyway, I feel as if although she is sweet as pie while texting, it's almost as if she does it out of some reason but I feel at the same time, she doesn't care. Such as if I take long to reply, she'll go "Why won't *my name* talk to me?" Yet it feels like she doesn't care! I know how cold she can get, we did start as an one night stand.
It's as if she's waiting for me to cheat or something, like she doesn't trust me. She was genuinely surprised that I told her I missed her although she's been texting me that everyday. She even told me at one point:
"You're not mine. I don't feel it as such. But I am yours." And proceeds to sending some loving-jokey sticker.
I don't know what's she's thinking! She can be so sweet and almost clingy but there's something lurking behind, what if she just ups and leaves, disappears? Runs away from me?
Why is she like this? Is this normal??! How to make her truly love me and trust me?