Fighting Constantly.

Mary • Married to my Best Friend. {10•22•16}💑Sagittarius. ♐️ Into all things Supernatural. 👻👽😇👿 ❤💜💛🖤💚💙💗
Okay. My boyfriend and I have known each other literally our whole lives. We finally we're both single and have been together about a year and a half. My problem is that I'm irritable, annoyed, and pissy all the time. We live together and always seem to argue. Sometimes it's over something small and other times it's pretty bad. I don't want to break up and neither does he but I can't understand why I act the way I do? What's happening? Am I afraid to open up to him completely? I need help.