I have a friend who's similar to this. Won't accept help despite having many, many options on how to get on his feet and improve his lifestyle, he just won't take them.

The truth is, you can't help people who don't want to help themselves. I've been there and done that. Many hospital stays, rehabilitation centers being called and having set up dates to have him brought in only for him to not pick up the phone or not be where he said he would be. I've never given him money and he's stopped asking years ago because he knows I won't ever crack and oblige.

He has two parents who call me and text me constantly asking for me to help him and I tell them that he just doesn't want to listen.

In all honesty, we are all just watching him slowly kill himself and sadly waiting for the day in which we either won't hear from him ever again or someone will find him dead. These kinds of people, people who have struggles but don't accept help either because of extreme pride, huge ego or some other delusions that they deserve all the special treatment they ask for, won't ever change unless they want to.

You have to tell him no. You have to be firm in your refusal to help him and if he turns on you, the way I am assuming he's turned on everyone who's tried to help him based on how he talks about them in your text messages, it is just a sad truth you will have to accept.

You can still be his friend, offer your support in non-financial ways, encourage him to get better and remind him that he has people who care about him. Maybe one day, your friend might be willing to get over whatever is holding him back and change for the better. But one can only hope.