In my opinion, platonic friendship beetwen a men and woman is possible, becase men , can understand myself even more than lots of woman, but I don't need to be together with my best friend. It's enough for me to writting and talking when we need it for instance when we are dealing our problems , or when we have enough time to do it. I prefer being friends than being together. It's better for me. Some people prefer platonic friendship which aren't commit and are useful. In my point of view sexes don't matter in friendship, the most significant are understanding and trust.