BF loosing feelings for me?? 😭

So my boyfriend and I have been with each other for about 3 months. He's already starting to feel like everything is just gone between us and he says he feels like he's slowly loosing feelings for me. He doesn't look at me as a gf just as a friend. But he loves me and cares about me is what he says. He says he wants to fix the way he feels but him/we have no idea on how to. I can't lose him now, he means the world to me. Help :(((