Need advice

My boyfriend of two years and I are going through a potential breakup. He feels like hes lost the love "feeling" for me, but is incredibly miserable with the potential breakup. I've tried talking to him about the possibility of us just going through a rough patch or just reaching the end of the honeymoon phase. But he doesn't think those are the issues. I need some advice on what to do, I don't want to give up on him because I truly think he does love me, his actions speak louder than his words, but I don't know what I can do to help bring those feelings back or should I just give up and call it quits? Our relationship up to this point has been really good, with few negatives.