Confused seeking advice

We were dating for 4 yrs and got married 4 months ago. We always had fights but after we got married every fight escalated to extreme. I was called bitch, cont, go die. Followed by saying he wants divorce. Than after storm passed he would say he didn’t mean the divorce. He said it’s my fault cause fights and when he gets that pissed and hurt he wanted to hurt me. I said over and over again don’t say divorce unless you mean it. Last fight on thanks giving, he went to my friend husband and said this is not what he signed up for and 1 week after getting married he has been thinking about divorce. After few days I confronted him very calmly and he denied that he mentioned divorce. I asked him if he really wants it tell me so I won’t be cut by surprise. He left for business trip and I ran to his best friend and I found out that he called him as well sounding upset and desperate not knowing what to do with the marriage. After his friend check on him few days later he text him things are ok now. I m torn feeling unsafe in this relationship and being away for a week I m think maybe I should follow his recommendation and go ahead and file. I don’t know if he is uusing d as a manipulation or he wants it