Long distance relationship trouble? :( help!!!?

My bf who lives in Los Angeles (2hr car ride south of where I live) recently came to visit and spend the night. We had an amazing/romantic/y;)/fun/beautiful night together on Saturday and I understand being sad when it comes time to saying goodbye ..there are always a few tears and a couple days of being under the wheather involved..for both of us after we see each other again and then having to say goodbye all over again. This last time tho my bf was hysterically crying his whole drive back home while i was on the phone with him and I told him he needed to calm down out of concern for his safety cuz he was driving on dangerous roadways and i said for him to pull over and when he didnt i got more forceful bout telling him to calm down. Now he thinks that I dont miss him as much as he misses me and thinks that because I didnt have the same hysteric reaction as him (even tho i have cried a few times myself) that I dont feel the same bout him :( idk wat to do? he can be so insecure bout my feelings for him sometimes. I tried to tell him that i do miss him just as much if not more and that i feel the same but he has this idea drilled into his head that i dont feel the same bout him :/ how should i prove my feelings? Am I some heartless ***** because im a lil more emotionally stable? He made me feel really bad but for wat? Did i do something wrong?