I love you after fighting

My husband and I just had a fight. He left the house. I texted “I love you” and he texted back “I’ll be back in 20 min”. I thought “he doesn’t love me” which feels hurtful. I caught myself at the thought. I also have mixed emotions about the fight still like anger and irritation. I want to have a good marriage but think having fights is a major problem. What now?