I've nearly said it quite a few times, but the words always get stuck. For me it's to do with feeling like I'm giving him an opening to hurt me. But I do try to say it in other ways. Today's session ended with us holding hands. I wanted to say I love him, and thank him for being there. As I couldn't speak, I gave him a gentle kiss on the cheek. Unusually it didn't feel awkward or embarrassing, it just seemed right. So I'm pretty sure he knows.