Boyfriend trouble

I've always had bad relationships and I finally found a guy I'm happy with. Everything has been going perfect. He met my baby and family I met his family. He's the sweetest. He's been going through a lot of stress lately due to work issues so he's thinking about quitting but isn't sure so he's super stressed out. But now all we do is argue. Every night for the past 4-5 days has been just arguing. He always apologizes almost immediately after but it makes me feel bad. I'm scared I'm going to lose him. From either him leaving me or me getting tired of our argument and just giving up on what we have. I don't want to.