Your question has been answered. I'll throw one back at you, though. Sometimes, and I'm not saying this is you, but sometimes we get into a bit of a frenzy to "express" something because we are in some way uncomfortable about it. You mention your love a number of times, and that you and he are committed to each other, but you don't mention his love for you. I know that not everyone feels that sub-love needs to be reciprocated, but it can be very unsettling to feel that your emotions outstrip the other person's.
So, I agree with the good advice that you've been given about your own love, but if you are uneasy about his feelings, I'm not sure that simply expressing yours will solve your problem. If he has said that he loves you, is there some other expression of it that you need? Is the time or the distance bothering you? If you have agreed that within your relationship he need not express love for you, then what other way can he make you feel safe and cherished?