I feel bad because im leaving my friends house..?

So I'm over my bestfriends. . Its hot and I'm very irritable. I told her I was gonna stay for a couple days but now I just wanna go home cuz I miss my mom and stuff. . I feel lke me and my bestfriend won't be friends no more and shell be mad but id rather her come over my house plus its a lot of people over here and its just hot as hell.