<human>: first time posting here
I'm a guy (17) who recently has become interested in a girl (17), the problem is I can't tell if she's interested, she never starts conversations but when we have them they go on for hours (one even went on for 10 ½ consecutively), she is very talkative round other people but goes shy around me, I've caught her looking at me across the room before but she never comes over and starts the conversation and she trusts me with secrets/stories she hasn't told anyone else but becomes hard to talk to unless its online or 1 on 1, I'm going to ask her out after Christmas so I'll know for sure then but I'm interested to know if anyone can shed some light on what she's thinking, some other information is that she's got kinda low self esteem, she's a very friendly person, I was socially awkward and weird (not too bad) the past few years but got my shit sorted a year ago or so and even on days when I've said message me later I have to start the convo again

Can you succinctly summarize the text in 1-3 sentences?
<bot>: girl I want is shyer around me than other people to the point she often feels distant and never starts conversations although when I do they're long and she seems interested, what's going on?