Bothered because my friend never leaves a compliment/comment on my instagram?

I have a long distance friend and I’ve seen them comment on others instagram posts who are long distance friend like leaving compliments and all if they post selfies and all, but if I do it, they’ll like it but say nothing. They do this for all other good friends but not me and it does kind of bother me that they never give a compliment there and it has me worried that they don’t do it cuz they maybe they don’t consider me a good enough friend to show affection. I feel left out, so how do I handle this?