Hi there. I'm sorry for what your going through. I know you probably know it, but it's not your job to "calm" your boyfriend down. I read a really great book, and I see your a college student, so I dont know how much time you would have..but..It helped me immensely and its called "Co-dependancy no more." I loved it. I did not realize how co-dependant I was in my last relationship. I felt like I had to go out of my way so my wife would not get angry or blow up. After some great therapy and reading this book I now realize that it was never my job to worry about HER anger, that was her problem. I hope you find comfort in this and let his issues be his, be it insecurity or whatever. You will never be able to convince him enough and it will suck the life out of you. Good luck in school and enjoy the time with your fam.