It’s called depression. But hey they aren’t really your friends if they just leave . You e just gotta try to be your happiest I went through it once . And it gets better along the way . I thought I’d never have anyone there for me then god put someone in my life he will put one in yours too . It will all work out
B G also answered this question with: "Sometimes it’s there I think that the way to cure what u feel is happiness. Well I guess that is ..."