I married may 19, 2017 in nh (resident of mass at time). Wondering if can annul based on coercion.

3 larger incidents: 2/2015 h/b (@that time b/f) sent pic of gun to his head when i had broken up w him). I called police for his own protection, he ended up in jail overniggt; 8/2016 after another breakup, he had sent many disparaging texts, i went to police to start possible harrassment procedures ; a subsequent breakup, he sent text that he'd take too many xanax. I did agree to marry him, but believe alot of this was manipulation which led me to continue rel w him. Do i have a case for annulment? He wants to stay together.