What am I

"Oh my gosh do I have to hear you again"
you always say to me
but you know I am your best friend
You always use me every day
you can not put me down
but thats OK
Your mom try to get you to leave me alone
You even pick up just to hear the tone
An hour a day
thats all you get
I am so addicting you can not quit
I hear you laugh,I hear you cry,I hear you say, "talk to you later good bye"
but as soon as you say that
you get right back to me
If you ask me you can not let me be
I never get a break
I am always getting paid
but our relationship is something we made
You know you can not leave me alone
the bill will be shown
You know that I am your cell phone