What Thing that You hate From Your Closest Person?

One thing I hate about one of my closest friends is that he so so lazy. I know he can do the work but yet, he calls me to explain it to him. One time he called me 5 times in under 15 minutes so that I can explain to him one simple concept. He is a good friend but he is just so darn lazy, that it is annoying me.

I just don't like that my closest friend sometimes doubts our friendship. If my pattern changes then sometimes I think she feels I love her less than I did before...