Advice?

I am so sad i feel so shitt, my boyfriend and i have been together for two and a half years and we got into a stupid fight on saturday and were both so impulsive, i told him not to text me unless he needs something or its an emergency because he really pissed me off so he hasnt texted me since nor answered any of my calls, i called him hundreds of times because we were suppose to go out yesterday. The first few times i called he picked it up but canceled it right away it was so rude of him, i got more mad and texted him saying things like "good job ignore me" and trying to explain to him why i told him not to text me in the first place. Its such a dumb fight and i feel so shitty like ive lost him, i dont know what to do honestly. He is literally all I have, this is so scary i want to die