Boyfriend problems

So 2 days ago I found out that my boyfriend had cheated and I broke up with him, he told me it was a mistake and wanted me back, I was having none of it. So it comes to the next day and he's not at school and it turns out ha run away from home, because people have threatened to come and stab him, he won't answer any of my calls or texts, I still love him deeply and obviously I still care for him so much, but I really don't no what to do, all I know that he is about 30 mins away from where he lived, with his 20 year old brother, please I need advice I don't no what to do, I'm in such a state😭😭😭