For those who have deeply cared for or loved someone, it is obvious that they love you,but you never told them

Maybe they don't even realize it... love isn't really a define-able thing! Or maybe they just don't know how to come out and say it :) Give them time... some people take more time to truly love than others! Love is patient :) Just take their little loving actions as confirmation that they love you until they are truly ready to let it out :)