A true love can be without passion?

I think a lot of people confuse love and lust. Yes, it is quite possible to have true love without passion. I think when you say passion you are describing lust. Every relationship goes through ups and downs with the amount of passion you feel. The underlying love, though, is always there. That is the day to day love. Now, if you completely don't feel attracted to him, there may be a reason why. You need to explore if you are bored and not doing your part in making the relationship one that can be held together. Perhaps something happened between the two of you that is making you back away. I can't tell since I obviously don't know you, but I can tell you from experience that a lack of passion often indicates a comfortableness that I wouldn't trade for anything.