I accept that my life is hard now

I left a relationship and my ex didn’t take it well. It was very unhealthy communication and I do think they were emotionally abusive & they have a drug problem

They text me constantly how their life is ruined and I caused everything etc. It escalates and escalates.

I'm not falling apart. I'm just trying to accept that I obviously deserve to have a hard life and idk how long I deserve it. Maybe 5, 6 years.