Why am I so sensitive?

Pa

First heres a little about myself..

My ex boyfriend was very abusive. When we fought he would always scream and yell at me. It was scary when he got upset. We broke up a a little over a year ago.

My currently boyfriend was driving in some bad weather & bad traffic. I was trying to tell him something and he got a bit stressed and frustrated don't aided his voice at me a bit. I didn't know why but I started getting all tear eyed and scared. He didn't mean any harm and apologized saying he wasn't mad at me he just got frustrated with driving.

Did my last relationship make me like this??