I think we just broke up

Me and my boyfriend have been arguing a lot since my son was born and just now we got into a big argument over text and I think we may have broken up. I’m balling my eyes out. My son is 2 months old. I never thought our relationship would be like this especially after we got our rainbow baby. I NEVER ever thought I’d ever be a single mom. Today is a really really bad day. I’m so sad. I’m sad our 5 year relationship may be over with and I’m mostly sad my son won’t have his daddy. I can’t stop crying.