Yes, you should tell him but at the same time honestly tell him how much you care (if you do a lot...). People have different kinds of ways of loving. My bf was very honest with me, and told me he's not even sure what it means to love...that he even has a difficult time quantifying it with his family (parents, etc). But he does tell me that he loves me (and I really believe it, because I can feel it)---reminding me of how much I mean to him, how I important i am in his life. It also seems like you've just started the relationship or are contemplating it. May be later on, you'll be surprised and a surge of some kind of emotion will gush out >< hehe. Not sure which T types this happens to, but it sure does happen. As Sonyab said, may be it's all a matter of trusting the right person and allowing your emotions to come through when you are completely comfortable. This was, oddly me, even though I'm an F.