Vulgar smell

He's been a friend to us for more than a year. However, recently a few months ago, we started to talk behind his back. The main topic usually about his odor. He has these defensive smell that no one can stand.
His hygiene is super poor! It is odd when you go to bathroom and take your shower without a soap in your hand. As I observed these days, he rarely brush his teeth. I know you've been hiding from us that you have this kind of illness involving your gum but that alone doesn't mean that you need not to take care of your dental hygiene. We haven't seen you wash your clothes.
We never know what may happen in future. But please take a little time of your life and thinking of your hygiene. No woman,yes no woman will stand for the defensive smell that comes from you. Don't you want to get married in future?
We are trying our hardest to let you know. It seems that doesn't work anymore. You are a super sensitive guy! How on earth are we going to change you?!
Sigh*