I want to tell him I love him?

Okay so my boyfriend and I have been together for a little while and everyday I just find my feelings getting stronger and stronger towards him. He is truely the best guy I have ever met and we just click so well. I've never found anyone who actually gets me and actually likes that I different and quirky like he does. I was sitting there the other day and it hit me out of nowhere that I am completely in love with this man. The thing is that this scares me to death. Him and I have both been badly hurt by past relationships and it's left us with huge committment issues. I'm afraid if I tell him how I feel that he will get scared and back off. But I'm pretty sure he has been pretty close to saying it a few times. Sometimes he will just stare at me and I'll ask him what he's thinking and he'll just smile and say I don't think either of us are ready to handle what I'm thinking. One time he kissed me and was told me I was so different and that he really likes me but how he feels is just too much to bring up that night. There have been other times too. I just don't know what to do or how to do it. Should I tell him or wait for him to tell me? I'm afraid if I don't say it then it will never be said because he knows how scared I get too. Any advice?