Insane moodiness?

Gaby
I'm in a long distance relationship with my boyfriend of 11 months. And I'm insanely moody?? One day I'll be happy, giggly and joking around on out Skype calls and the next day, I'll be nothing but death glares and crying and then when he has to leave, I'll send him messages about how sometimes he makes me feel so shit and I'll apologise for being upset and he never apologises for making me feel like shit and I feel awful! I think he's really starting to get sick of me because of if but I literally can't control it? I get so out of control and it's kind of scary! I have no idea what to do anymore😔