I fucked up

I was mad at my dude went his friends house that he knows wants to fuck an one night i was pissy ass drunk an was down for it now he doesn't trust me but through our 6 yrs together i have never cheated on him sober i say i wouldnt fuck his friend. but that means shit to him now an i feel like this is the end to our relationship i regret every bit of that drunk night but thats not going to change the way he looks at me now ..i need gas money to get to work an now hes like your going to see ole dude not work how if anyway can i fix this

Ps..I never fucked his friend went an hung out with him an his girlfriend had a couple of drinks an left.