I don't want to lose my boyfriend

[Tuutuu22]

We started dating in September 2014. The first couple of months were amazing. The past couple of months have been rough. We argue often and often it's me getting upset with him. We broke up a month ago from today because he thought I was on an app tinder when in reality my friends re-activated my account out of curiosity and one of his friends saw my profile. He broke up with me and didn't even let me explain. I wished him the best and left then a day and a half later he called me and wanted to hear what I had to say. Once I explained he asked for me back, I made him wait a few days because even before that we were having arguments. One argument was he wouldn't let me go to my friends prom as a favor but he went to the Bahamas over spring break. BUT it was ok because he planned that trip before we dated. I'm not stuck in the past I'm just giving examples. Recently our problems include him asking me to go with him to a party then he ended up not wanting me to go with him because the last party I drank too much and he didn't like how I acted. We've been to many parties together I sip to socialize. Only one time I drank too much. I took it as he didn't bring me because he isn't proud to have me. Last night we got into another argument because I asked him who a girl was that he followed on instagram and he said I was trying to control him. I re-assured him I was just asking a question and I wouldn't ever try to control him. Long tory short last night he told me He feels he can't be himself around me any more because I nit-pick at everything he does. I felt terrible. Then he told me our conversations sucked lately and there was no spark there. My eyes filled up, I thought he was breaking up with me again. He said he wasn't and I asked him why he wasn't breaking up with me and he said because we have such good memories and he knows we can be that way again. I personally feel I get upset with him a lot. Sometimes it's unreasonable I will admit. I got mad a couple days ago because he was on the phone texting for a while when we were eating and I told him it was rude and "I don't hangout with you to be on our phones". I know he puts his guard up around me and I hate it its my fault. Every time I leave or he drops me off he asks if I'm mad at him for any reason because every time I was I usually said it after wards. This kid is my first love but I feel so worthless and like such a mess up. I don't know what to do. I know I can nit pick less and that will make him happier but I'm so broken from things that have been said I don't know what to do. Please help