sometimes people are reserved... that doesn't always mean they don't consider you a good friend,

Here's a personal experience of mine that might help...
I think I might have been in a similar situation with a friend of mine, but I was in the opposite position. I really love that friend, one of my best friends. But I was in a spot a year ago where I would listen to everything my friends would say, and never say things too personal back, not because I didnt care about htem. To the contrary, one of BEST friends. They felt I wasn't open on my end

just remember, some people just are at a spot where they can't be as open .. doesnt mean they dont like you as a friend