SOMEONE PLZ RESPONDE!!! WE GOT INTO A FIGHT AND I DONT KNOW WHAT TO DO...PLZ HELP!!!

Okay, ive been datng this guy kevin for 2mths, now we are getting in more fights. are main two fghts are either about his ex gf that hes still friends with and i think in love with and the other was just last night, when we were talking he said that in my exs mind i didnt do enough and thts why, in my exs mind, he went crazy, and i mean he really did go crazy and is in a mental hospital so when my bf said tht it really hurt my feelings. now my bf did try to tell me that its nothing i did wrong but thats just how my ex is probablly thinking only cuz he went throught the same thing. he really hit home and upset me and he knew that but yet didnt seem to care and just kept saying that i was taking what he said the wrong and he wouldnt apoligize. Anyways i know this probablly isnt making any scents but just try to bare with me. i was really hurt but tried to understand that he didnt mean it in a mean way and wasnt blamng me for anythng, but then he told me that it would prob be best if i went home for the night. now this is where i really screwed up, i really didnt want to go home and hated that we were fighting so i pleaded with him to just forget about the fight and let me stay but he kept insisting that i should go home, so i know i already messed up cuz i was being clingy but then i said something else to him that i know bothered him and i said fine ill go home and find someone who wants me around..anyways i feel really feel bad now and i havnt heard a word from him since last night. now i dont know what to do or how to fix this..plz help me i need your advice. i want to call him and tell him im sorry but at the same time i dont think he was right in what he said to me either and i also dont want to break in and call him so i seem even more needy. what do i do????