fighting all the time

Need help. It seems like my bf and are always arguing or fighting. Usually it's me and he's always trying to fix it. How do we get out of this. It's very tiring and stressful. I believe I truly love him and he thinks I'm his soulmate. I don't really believe in there's only one soulmate so I don't feel the same about that. We've only been seeing each other for 5 months and we live together. I don't know if it's too much time together plus we work together side by side. Please be honest and help me.