tsukishima is always very salty to people except his best friend yamaguchi and you...his dear crush... But you are to dense to realize he likes you. And the height difference is funny to him so he often calls you "pipsqueak" to tease you because he likes how cute you look when your angry

you were sat in the photography club fixing up some of the school news paper when tsukishima walks in

Tsukishima:pipsqueak why were you speaking to kageyama?.