iPhone headphones keep breaking/sound quality awful

I have had my iPhone since for about 5 months now. For some reason, I have had about 3 pairs of headphones and after about a month of use, they start sounding really bad. I have to turn volume up all the way to hear the music at a comfortable level and the quality itself is just awful.

This has happened to me three times, and has happened to my partner's iPhone twice, yet I can't find a single other person that is having this issue. I don't want to keep having to make trips to the apple store for them to replace, please help!

Let me emphasis how bad the sound quality it. There are four iPhones in my household. When I think one headset sounds bad, I try my roommates headphones and I am blown away by how good they sound because I am used to my bad ones. It is not the phone itself, as when I use new/not broken headphones everything sounds great. The difference in sound quality is very obvious, it is not just a little thing I have noticed. Any prudent person would have a hard time denying the difference in sound quality.

Is anyone else having this problem?