Sounds like what happened to me a few months ago. I started helping out this girl I have worked with for awhile (giving drivers lessons because no one else would), started to get to know her, and developed a little crush on her. One day shortly after, I finally got the courage to ask her out (kinda lol, I did such a terrible job at it, was so awkward....). At first she said no, sort of, then a few hours later, texted me back and said I thought about it and would like to try. So I continued to help her as I was before and date as well now. I really liked her and I was always there for her. She would send me text messages every day, all throughout the day, and we would talk at night until she fell asleep.
One day she sort of annoyed me; she went to her mom's house for a bit, and couldn't get back home (stays with her dad). She had school the next morning so she asked me to pick her up and take her home. I did pick her up, but I was a bit mad about it, because her mom's house is like 20 miles away from where we both live. Afterwards, she texted me asking me if everything's all right between us, cuz I seemed a bit mad when I picked her up, and I admitted I was a bit annoyed about it and I apologized for it. We set something up for the next day before she fell asleep.
The next day I called her and she said something came up and that she'll talk to me in a little bit. I was sleepy so I said ok, I'll take a little nap, call me later. An hour or so later I hear my phone beeping, had a text from her. I read it and it said, things not working out, I think we'd be better as friends. I ended up going back to sleep, I was really depressed and heartbroken. I texted her back later on, asking if we could talk about things, and got a similar response. I wanted to try to fix things, see what went wrong, see if things could be ok, but she stopped replying.
Anyways, I still see her one day a week at work, and things are still weird between us. At first, she wouldn't even talk at all to me, but over time we started talking again a bit. Now she acts like we're friends at work, but otherwise, we barely talk anymore. Never did find out what happened between us yet either.
I knew going into it that we both had issues though; she's kind of "slow" and I have many issues as well. Having spent time with her tho, and getting to know her a bit, I figured maybe we could work around things. Maybe it was a blessing in disguise, who knows? Looking back, and maybe even during our relationship, I had a feeling that she wasn't all that into me; I just ignored it.
The right person is out there kayla, you just got to sort through the garbage to find them. Breaking up sucks but it gets better over time. You're still really young and you've got plenty of time ahead of you to find the right one.
-Kelly