What should I do? I'm too proud to apologize?

My boyfriend and I live together but a week ago we got into a huge argument and now we haven't spoken to each other for 5 long days... It's exhausting cause we're always sitting in the same room but the silence is a killer... What should I do, I don't wanna say sorry or start talking to him which will make him think that the whole thing was my fault where as it was definitely his fault!
Updates
+1 y
Both of us are extremely Stubborn ...
What should I do? I'm too proud to apologize?
Post Opinion