My wife and I are having issues. Any advice?

For the past 8 weeks I'd say, my wife and I have been arguing a little bit more than usual and it's bothering me. I hate confrontation so arguments with my loved ones is not a good feeling. We first didn't argue heavily.. we were just distant. I would find excuses to touch her or talk to her but she would be cold and if I touched her she push me away. We had a really big argument last week. We were getting ready to go to an event and she just seemed a little grumpy.. so I asked her why she was acting that way and she was being sarcastic and very rude.. I got heated and by me getting heated she became heated aswell. We haven't talked since. I tried apologizing but she would smirk and don't say anything. What should I do?
My wife and I are having issues. Any advice?
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