<human>: I have been good friends with a girl since my freshman year of high school - I'm now a senior and about to graduate. I have loved her ever since I first met her and began talking to her, and she is one of only three people that I have been interested in over the past four, five years. I've always had a good relationship with her, and I consider her to be one of my best friends. A few months ago, I started talking to her a lot more than I previously had - oftentimes, we would chat on Facebook for hours into the night. Our relationship reached a peak a month ago and I was crazy about her. However, more recently (like in the past couple of weeks), I noticed something that kinda struck me... Previously, we would both start conversations an equal amount of time, but more recently, I've noticed that I'm the only starting the chats, and that she's more prone to ending them early... I'm a bit confused by these actions, and I don't feel that I've done anything wrong that would push her away. What's going on, and what should I do about it? Should I ask her if everything's OK? Thanks so much.

Summarize the given text in a few sentences.
<bot>: I'm the only one starting chats w/ crush now and am confused about what this means. How should I act on this?