iam a sinner

Yesterday afternoon my appa called me on the phone He is in town staying with my brother He asked "Are you free tomorrow"? Tomorrow is a Sunday.. I had an ache in my mind.. My father is asking me my convenience to visit me ( In fact he has to live with me..or rather I have to take care of him and especially when my mamma is no more..But) I cant understand why such distance.. Who am I.. I am his son..( At office i am not a General Manager who holds an important portfolio.) I dont know how in all the years i have sent a wrong signal that my father should ask me time for visiting me I simple said ..You can come whenever you feel like.. In my heart of hearts.. I cried and said Oh I must have sinned.. I am a sinner.