Most Helpful Girl
Bite the bullet and talk to him. I had the same feeling about my ex, I tried to bring it up casually and he reassured me he really loved me/loved spending time w/me/wanted to be w/me forever etc. After a little while I got even more doubts and I sat down and had that conversation w/him. The words that came out of his mouth shocked me and shook me to the core. I think I felt my heart break. See how he reacts and that will tell you what he truly thinks.