I just need some help.

I'm so lost about what I should do in my relationship I'm sorry if this is to long but me and my fiancé seem to just be drifting apart we moved to Texas a few months ago after I had just moved in and lived with him for a month. I honestly love him so much and at first we were great and I thought he was the one but now we argue a lot and I know some of it was me but now I'm not starting anything and he just gets mad me and yells at me and yesterday he told me stuff I was doing was dumb and retarded. I have anxiety and ptsd I don't like being put in certain situations. I'm just lost. I need some idea of what to do should I fix this should I try to suprise him with something idk he also got his ears pierced before getting me and engagement ring.. Is that a big deal sorry so many questions..