I have been in a relationship for a year and 7 months these few weeks have been bad

He's been losing feelings and he doesn't know why. I love him very very much. He sometimes thinks I'm obsessed when I'm not at all. I give him his space and I make sure he's okay but sometimes I think if me and him saw each other more it would be better?I truly want me and him to get better, it's kind of hard not to stress about it, because the love of my life is losing feelings which is a sad feeling. He's a great guy! I just don't know why he's been losing feelings towards me. He's starting to put less effort in talking to me.At this point I'll do anything to just make us better as a couple. I tried talking to him but he doesn't like talking about it much. Advice on what to do?