I started reading your book Country Love, because I honestly love country stories. (I'm even writing one! It would mean the world if you could check it out!) Country Love is really great! Honestly, I don't know why you are so hard on yourself! If a chapter is super short, don't worry. It's not the length that matters, it's the quality. And let me say this, you sure do know how to write! Since you do have a few short chapters, try combining some. It's simple, and makes them longer! Mainly, just stop being so hard on yourself, and put more of you into your story. Oh yeah, I like BTR too! Hope this helped you out, and if you're interested in traveling to my book, Love Long Gone, you might like it because we write alike! Much Love.
