I need to know how to carefully navigate this. I’m lost.

My boyfriend and I started dating almost a year ago, March 9 of 2024. We got attached so quickly and had such an amazing connection and couldn’t stay apart from each other. Then I noticed his behavior getting strange and he was being very distant, he would disappear for days at a time. At one point in May, he disappeared for six days. No one heard from him, I actually thought that he was dead somewhere. And then he called me crying and apologizing one morning saying that he was just dealing with some stuff. Then on my birthday in August, he Had apparently been gambling all night and all day and was leaving the casino to meet me at my house.(at this point I knew that he gambled too much but I did not know to what extent and I did not know that he was at the casino that day. I thought he was at work.) I was leaving work early because he was going to take me out to dinner for my birthday and we were gonna just find something fun to do just be together. I got in my car to head home and I get a call from him crying because he fell asleep driving and got in an accident. Come to find out that he started out the day with 10 grand and gambled it all away and only had money left to buy me a card on my birthday. That day was supposed to be the start of him turning his life around. He got clean from gambling and was going to meetings, and I suspected that there was still a little bit of online app gaming, but it was nothing too serious because he didn’t have a job or a way to get any money, or so I thought. I did find out eventually that he had been stealing to get money, not just from other people, but from me, his parents, etc lying about needing things for money and really gambling with it. Anyway, he ended up going to a rehab in California in November. He was so excited to get help and for us to start a new life when he got home. Already a long story, short but Because this rehab was scholarship funded they were extremely understaffed and had no therapy there for him except for a worksheet for him to do every day, he saw a doctor and his caseworker once by phone for 10 minutes,  so he ended up checking out after two weeks of literally sitting in a room and doing nothing but watching TV all day every day. We spent the weekend together when he came home and I felt like I had my boyfriend back the whole weekend was so perfect. I had never felt so close to anyone in my life as I felt to him that weekend and then something happened where he had to stay at his parents house that Sunday night, I don’t remember what it was, but that’s the night that it all fell apart again I went home and basically an hour after I left He got the urge to gamble and he went and gambled, and it just caused a relapse that has snowballed into a huge disaster.

now the man that I used to see almost every day(mind you, he lives in New Jersey and I live in Pennsylvania an hour and a half apart, but we still constantly made it work) I now see maybe once a week for a few hours until he gets the urge to gamble and will leave my house in the middle of the night anytime a day to go gamble and then I don’t see him again or hear from him for days at a time. I heard from him this morning after a few days of no contact and he sounded like a different person when I was talking to him, his voice sounded different. He almost had like an accent in a way. I don’t know how to describe it, but it wasn’t him. I don’t know who I was talking to this morning. he basically said to me stop asking me if we’re OK of course we’re OK, we’re not breaking up, I just need you to let me do what I have to do and right now that’s gamble. He says he started gambling again when his truck got impounded because he needed the money to get it out.  He just started a new job on Wednesday and I know exactly what’s gonna happen with his paychecks. He needs a car he’s not gonna be able to get a car or food or anything because he’s going to gamble away his paychecks and never have anything.

And I am so dumb because this morning when he called me, he said he didn’t have any money left to buy anything to eat and he was so hungry. Could I please cash app him some money. And of course I was like yeah of course I don’t want you to be hungry and I would send him money and then as soon as I did that, I was like I am such an idiot of course it’s not for food. He’s going to gamble it. I just don’t want anything bad to happen to him and I’m terrified and I know I should walk away and just forget about it and not let this run my life, but I can’t. I’m in love with him. I can’t just let this happen to him, but I don’t know what to do. 
and in talking to him today, he told me that he realizes this is a big problem and that his life is out of control, but he said he just can’t stop and he doesn’t know what to do so he just keeps gambling because otherwise he’s just a mess because his life is a mess. And he admits to knowing that gambling is only gonna make it worse, but he feels like he has to do it.

And I feel helpless like there’s nothing that I can do right now and I just have to watch my future husband ruin his life and I can’t do that but u can’t walk away either.