<human>: Can you provide a brief rundown of the text in within 3 sentences?

Throwaway because my friends use reddit. Also excuse me for any grammatical errors, I'm not a native speaker.

I don't have insecurity issues, but I'm not the kind of guy who talks more with girls than guys either. I've had a girlfriend before, if that would matter.

For the past few months, I spent most of my time during my school's breaks at the library with a friend and two of his friends.  Browsing Reddit, doing homework, discussing our hobbies (been getting into martial arts recently, definitely suggest trying something out if there's something in your area). One of his friends is a girl and we don't really talk to eachother. We didn't, I should say. I mainly sat there browsing Reddit and talking with that one friend. I only see the girl at the library and at my locker (hers is next to mine).

Last week on Thursday she randomly complimented my beard (something along the lines of "Hey, your beard looks good. Uh, your locker's next to mine and I see you very often.") I thanked her and I was kind of surprised because I don't get compliments from one person that often. What I mean by that is that people generally do say something to me when I do something with my hair (I recommend long hair just as much as martial arts, haha). 

From that day onwards, she's always smiling when she looks at me and sometimes tries to start small convos at our lockers. I caught her just looking/staring at me a few times too, at the library. 

Now, am I being really stupid at not really noticing her hints, or am I being really stupid for thinking she's hinting?
<bot>: Girl randomly complimented me, always smiling when talking with me, also looks/stares at me (maybe coincidence that we both looked, I dunno). Is she hinting?