I Love You?

Me and my boyfriend were drunkenly messing around the other night and he told me he loved me. We don't say that to each other for personal reasons and I've come to terms with that. Usually when he gets wasted he says that to me and I write it off. However this time he said it and asked me if I felt the same. I said I did and he asked me if I was being honest. Again I said I did. It's not that I don't love him, it's the simple fact that it's really hard for me to say it out loud and to his face. Can someone tell me what's going on??