Tell me it gets easier

My ex (who most definitely has very strong dismissive avoidant tendencies) and I broke up a week ago. It occurred over text and I begged and begged to have an in-person conversation. He refused and now disappeared. Today is day one of real no contact. We had a few days of no contact then exchanged a few logistical texts. Yesterday I messaged him but he never replied, so I am back at day one. My heart is in a million pieces and I feel like I am dying. I know I deserve better, but it doesn't make it hurt any less. All I want to do is message him. :(