Your empty spaces are always mean't to be filled. There's empty spaces in your brain for more knowledge to come, so what's the problem with having some space in your heart? It just means that you have enough room to grow and love everyone.
I'd learnt that actions speak louder than words. im too scared to say I love you and I know its not the right time anyway but I am saying it in my actions as much as I can and watching for you to do the same