I have reached a level in my life to the point, I do no have a single person to text without thinking much. I am not trying to fish out sympathy from you or anything. Just letting this out of my heart.
Having someone to talk to without any thought is a blessing for which you should cherish that person. Only when you lose that person, you gonna feel the importance of their presence. Don't let that happen. Express you feelings and show gratitude. Who knows you might die today or worst case scenario they might die. (God forbid us)