I'm sorry, I was sleeping. My phone was dead, or charging, or some other excuse. I was busy being happy with my best friends, flatmates, having the time of my life. Sorry. Sorry you're depressed. Sorry I broke your heart. Sorry I can't make up my mind and I'm selfish and unkind and I can't be bothered to drive to come see you. I'm so sorry. It doesn't matter how many times you say don't worry or tell me I don't need to be, I'll still keep saying it. s-o-r-r-y. Please don't be sad, it's a bit of a burden on me.