<human>: Over the course of our relationship, I feel like my boyfriend has put less and less effort into his appearance.  The problems are mostly concerning his head and facial hair (as well as overall grooming)--he doesn't maintain his beard and won't style his long hair.  I know these are not big issues, but I am not as attracted to him because of it, not only because I don't like how he looks, but also because it seems like he doesn't care enough about me to put forth effort in how he looks.  

I have brought it up in the past, but he gets frustrated easily and often tells me that if I want him to look a certain way, I need to handle it.  He also says that when I mention it, it makes him feel self conscious.  How do I talk to him about this?  Thank you.

Give me the gist of the text in a nutshell
<bot>: Boyfriend doesn't take care of his appearance anymore and so I am less attracted to him, how can I ask him to change?